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57540495376 = 24721326592
BaseRepresentation
bin110101100101101011…
…100100100000010000
312111112002121000200101
4311211223210200100
51420320331323001
642233404302144
74104623066200
oct654553444020
9174462530611
1057540495376
1122448122911
12b19a241954
135570038c00
142adbd84400
15176b875a01
hexd65ae4810

57540495376 has 135 divisors (see below), whose sum is σ = 140642956701. Its totient is φ = 22728730752.

The previous prime is 57540495371. The next prime is 57540495427. The reversal of 57540495376 is 67359404575.

It is a happy number.

The square root of 57540495376 is 239876.

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

It can be written as a sum of positive squares in only one way, i.e., 8511907600 + 49028587776 = 92260^2 + 221424^2 .

It is not an unprimeable number, because it can be changed into a prime (57540495371) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 87314535 + ... + 87315193.

Almost surely, 257540495376 is an apocalyptic number.

57540495376 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

57540495376 is the 239876-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57540495376

57540495376 is an abundant number, since it is smaller than the sum of its proper divisors (83102461325).

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

57540495376 is an equidigital number, since it uses as much as digits as its factorization.

57540495376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 55.

The spelling of 57540495376 in words is "fifty-seven billion, five hundred forty million, four hundred ninety-five thousand, three hundred seventy-six".

Divisors: 1 2 4 7 8 13 14 16 26 28 49 52 56 91 98 104 112 169 182 196 208 338 364 392 637 659 676 728 784 1183 1274 1318 1352 1456 2366 2548 2636 2704 4613 4732 5096 5272 8281 8567 9226 9464 10192 10544 16562 17134 18452 18928 32291 33124 34268 36904 59969 64582 66248 68536 73808 111371 119938 129164 132496 137072 222742 239876 258328 419783 434281 445484 479752 516656 779597 839566 868562 890968 959504 1559194 1679132 1737124 1781936 3039967 3118388 3358264 3474248 5457179 5645653 6079934 6236776 6716528 6948496 10914358 11291306 12159868 12473552 21279769 21828716 22582612 24319736 39519571 42559538 43657432 45165224 48639472 73393489 79039142 85119076 87314864 90330448 146786978 158078284 170238152 276636997 293573956 316156568 340476304 513754423 553273994 587147912 632313136 1027508846 1106547988 1174295824 2055017692 2213095976 3596280961 4110035384 4426191952 7192561922 8220070768 14385123844 28770247688 57540495376