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53015420352 = 2631018113371
BaseRepresentation
bin110001010111111101…
…110001110111000000
312001211201212101201010
4301113331301313000
51332033421422402
640204400240520
73554525431506
oct612775616700
9161751771633
1053015420352
1120535905a94
12a336910140
134ccb6c301b
1427ccdcc676
1515a4482a6c
hexc57f71dc0

53015420352 has 112 divisors (see below), whose sum is σ = 141875524224. Its totient is φ = 17470080000.

The previous prime is 53015420333. The next prime is 53015420401. The reversal of 53015420352 is 25302451035.

It is a super-3 number, since 3×530154203523 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15725227 + ... + 15728597.

It is an arithmetic number, because the mean of its divisors is an integer number (1266745752).

Almost surely, 253015420352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53015420352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70937762112).

53015420352 is an abundant number, since it is smaller than the sum of its proper divisors (88860103872).

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

53015420352 is a wasteful number, since it uses less digits than its factorization.

53015420352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298 (or 4288 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 53015420352 its reverse (25302451035), we get a palindrome (78317871387).

The spelling of 53015420352 in words is "fifty-three billion, fifteen million, four hundred twenty thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 101 192 202 303 404 606 808 811 1212 1616 1622 2424 2433 3232 3244 3371 4848 4866 6464 6488 6742 9696 9732 10113 12976 13484 19392 19464 20226 25952 26968 38928 40452 51904 53936 77856 80904 81911 107872 155712 161808 163822 215744 245733 323616 327644 340471 491466 647232 655288 680942 982932 1021413 1310576 1361884 1965864 2042826 2621152 2723768 2733881 3931728 4085652 5242304 5447536 5467762 7863456 8171304 8201643 10895072 10935524 15726912 16342608 16403286 21790144 21871048 32685216 32806572 43742096 65370432 65613144 87484192 131226288 174968384 262452576 276121981 524905152 552243962 828365943 1104487924 1656731886 2208975848 3313463772 4417951696 6626927544 8835903392 13253855088 17671806784 26507710176 53015420352