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152680939 = 233655283
BaseRepresentation
bin10010001100110…
…11100111101011
3101122021222212121
421012123213223
5303041242224
623052252111
73532523635
oct1106334753
9348258777
10152680939
11792034a4
1243171037
132582a268
14163c5a55
15d60dbe4
hex919b9eb

152680939 has 4 divisors (see below), whose sum is σ = 153336456. Its totient is φ = 152025424.

The previous prime is 152680909. The next prime is 152680943. The reversal of 152680939 is 939086251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939086251 = 2340829837.

It is a cyclic number.

It is not a de Polignac number, because 152680939 - 211 = 152678891 is a prime.

It is a super-2 number, since 2×1526809392 = 46622938267843442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152680895 and 152680904.

It is not an unprimeable number, because it can be changed into a prime (152680909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327409 + ... + 327874.

It is an arithmetic number, because the mean of its divisors is an integer number (38334114).

Almost surely, 2152680939 is an apocalyptic number.

152680939 is a deficient number, since it is larger than the sum of its proper divisors (655517).

152680939 is an equidigital number, since it uses as much as digits as its factorization.

152680939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655516.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 152680939 is about 12356.4128694375. The cubic root of 152680939 is about 534.4760806883.

The spelling of 152680939 in words is "one hundred fifty-two million, six hundred eighty thousand, nine hundred thirty-nine".

Divisors: 1 233 655283 152680939