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152985657 = 31113073547
BaseRepresentation
bin10010001111001…
…10000000111001
3101122212110212110
421013212000321
5303131020112
623103002533
73535233216
oct1107460071
9348773773
10152985657
11793a1430
1243299449
1325905b76
1416464b0d
15d66e13c
hex91e6039

152985657 has 16 divisors (see below), whose sum is σ = 222757632. Its totient is φ = 92621520.

The previous prime is 152985653. The next prime is 152985661. The reversal of 152985657 is 756589251.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (152985653) and next prime (152985661).

It is not a de Polignac number, because 152985657 - 22 = 152985653 is a prime.

It is a super-2 number, since 2×1529856572 = 46809222495443298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (152985653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41358 + ... + 44904.

It is an arithmetic number, because the mean of its divisors is an integer number (13922352).

Almost surely, 2152985657 is an apocalyptic number.

It is an amenable number.

152985657 is a deficient number, since it is larger than the sum of its proper divisors (69771975).

152985657 is a wasteful number, since it uses less digits than its factorization.

152985657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868.

The product of its digits is 756000, while the sum is 48.

The square root of 152985657 is about 12368.7370818528. The cubic root of 152985657 is about 534.8314104717.

The spelling of 152985657 in words is "one hundred fifty-two million, nine hundred eighty-five thousand, six hundred fifty-seven".

Divisors: 1 3 11 33 1307 3547 3921 10641 14377 39017 43131 117051 4635929 13907787 50995219 152985657