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157247143936 = 21615492
BaseRepresentation
bin1001001001110010101…
…0010000000000000000
3120000212211020120101221
42102130222100000000
510034020232101221
6200123252004424
714234505445531
oct2223452200000
9500784216357
10157247143936
1160762a05703
1226585900714
1311a9cb37acc
14787a082688
154154e66541
hex249ca90000

157247143936 has 51 divisors (see below), whose sum is σ = 314695048521. Its totient is φ = 78572814336.

The previous prime is 157247143897. The next prime is 157247143993. The reversal of 157247143936 is 639341742751.

The square root of 157247143936 is 396544.

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

157247143936 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 53202190336 + 104044953600 = 230656^2 + 322560^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 101514490 + ... + 101516038.

Almost surely, 2157247143936 is an apocalyptic number.

157247143936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

157247143936 is the 396544-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157247143936

157247143936 is an abundant number, since it is smaller than the sum of its proper divisors (157447904585).

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

157247143936 is an frugal number, since it uses more digits than its factorization.

157247143936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130 (or 1551 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 52.

The spelling of 157247143936 in words is "one hundred fifty-seven billion, two hundred forty-seven million, one hundred forty-three thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 1549 2048 3098 4096 6196 8192 12392 16384 24784 32768 49568 65536 99136 198272 396544 793088 1586176 2399401 3172352 4798802 6344704 9597604 12689408 19195208 25378816 38390416 50757632 76780832 101515264 153561664 307123328 614246656 1228493312 2456986624 4913973248 9827946496 19655892992 39311785984 78623571968 157247143936