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157261839132 = 223137269335521
BaseRepresentation
bin1001001001110110001…
…0010011101100011100
3120000220211220011102110
42102131202103230130
510034033012323012
6200124534554020
714235044401626
oct2223542235434
9500824804373
10157261839132
11607702323a2
122658a808910
1311aa2bb17a8
14787bdc9c16
1541563ba73c
hex249d893b1c

157261839132 has 48 divisors (see below), whose sum is σ = 369770379552. Its totient is φ = 52017192960.

The previous prime is 157261839109. The next prime is 157261839169. The reversal of 157261839132 is 231938162751.

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, 4409532 + ... + 4445052.

It is an arithmetic number, because the mean of its divisors is an integer number (7703549574).

Almost surely, 2157261839132 is an apocalyptic number.

157261839132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157261839132 is an abundant number, since it is smaller than the sum of its proper divisors (212508540420).

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

157261839132 is a wasteful number, since it uses less digits than its factorization.

157261839132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38358 (or 38356 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The spelling of 157261839132 in words is "one hundred fifty-seven billion, two hundred sixty-one million, eight hundred thirty-nine thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 137 274 411 548 822 1644 2693 5386 8079 10772 16158 32316 35521 71042 106563 142084 213126 368941 426252 737882 1106823 1475764 2213646 4427292 4866377 9732754 14599131 19465508 29198262 58396524 95658053 191316106 286974159 382632212 573948318 1147896636 13105153261 26210306522 39315459783 52420613044 78630919566 157261839132