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57105705024 = 263433192
BaseRepresentation
bin110101001011110000…
…111110100001000000
312110101210110101110000
4311023300332201000
51413423030030044
642122313240000
74061063324634
oct651360764100
9173353411400
1057105705024
1122244755445
12b098703000
135500c36104
142a9a324dc4
1517435ddd69
hexd4bc3e840

57105705024 has 105 divisors (see below), whose sum is σ = 169330217727. Its totient is φ = 19029499776.

The previous prime is 57105705017. The next prime is 57105705031. The reversal of 57105705024 is 42050750175.

The square root of 57105705024 is 238968.

It is a perfect power (a square), and thus also a powerful number.

57105705024 is a `hidden beast` number, since 5 + 7 + 10 + 570 + 50 + 24 = 666.

It is an interprime number because it is at equal distance from previous prime (57105705017) and next prime (57105705031).

It is a super-2 number, since 2×571057050242 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 57105705024.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 17204037 + ... + 17207355.

Almost surely, 257105705024 is an apocalyptic number.

57105705024 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

57105705024 is the 238968-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57105705024

57105705024 is an abundant number, since it is smaller than the sum of its proper divisors (112224512703).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57105705024 is an frugal number, since it uses more digits than its factorization.

57105705024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6662 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

Multiplying 57105705024 by its sum of digits (36), we get a square (2055805380864 = 14338082).

57105705024 divided by its sum of digits (36) gives a square (1586269584 = 398282).

It can be divided in two parts, 57105 and 705024, that added together give a square (762129 = 8732).

The spelling of 57105705024 in words is "fifty-seven billion, one hundred five million, seven hundred five thousand, twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 144 162 192 216 288 324 432 576 648 864 1296 1728 2592 3319 5184 6638 9957 13276 19914 26552 29871 39828 53104 59742 79656 89613 106208 119484 159312 179226 212416 238968 268839 318624 358452 477936 537678 637248 716904 955872 1075356 1433808 1911744 2150712 2867616 4301424 5735232 8602848 11015761 17205696 22031522 33047283 44063044 66094566 88126088 99141849 132189132 176252176 198283698 264378264 297425547 352504352 396567396 528756528 594851094 705008704 793134792 892276641 1057513056 1189702188 1586269584 1784553282 2115026112 2379404376 3172539168 3569106564 4758808752 6345078336 7138213128 9517617504 14276426256 19035235008 28552852512 57105705024