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157159530 = 232511158747
BaseRepresentation
bin10010101111000…
…01000001101010
3101221201112100100
421113201001222
5310213101110
623332250230
73615556023
oct1127410152
9357645310
10157159530
1180792310
1244770976
1326737908
1416c2dc4a
15dbe5bc0
hex95e106a

157159530 has 48 divisors (see below), whose sum is σ = 445764384. Its totient is φ = 38099040.

The previous prime is 157159523. The next prime is 157159537. The reversal of 157159530 is 35951751.

157159530 is a `hidden beast` number, since 1 + 5 + 71 + 59 + 530 = 666.

It is an interprime number because it is at equal distance from previous prime (157159523) and next prime (157159537).

It is not an unprimeable number, because it can be changed into a prime (157159537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78384 + ... + 80363.

It is an arithmetic number, because the mean of its divisors is an integer number (9286758).

Almost surely, 2157159530 is an apocalyptic number.

157159530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157159530 is an abundant number, since it is smaller than the sum of its proper divisors (288604854).

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

157159530 is a wasteful number, since it uses less digits than its factorization.

157159530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158771 (or 158768 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 36.

The square root of 157159530 is about 12536.3284098655. The cubic root of 157159530 is about 539.6517301662.

The spelling of 157159530 in words is "one hundred fifty-seven million, one hundred fifty-nine thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 198 330 495 990 158747 317494 476241 793735 952482 1428723 1587470 1746217 2381205 2857446 3492434 4762410 5238651 7143615 8731085 10477302 14287230 15715953 17462170 26193255 31431906 52386510 78579765 157159530