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307152385 = 5196153003
BaseRepresentation
bin10010010011101…
…100011000000001
3210101221221212021
4102103230120001
51112112334020
650251201441
710416516001
oct2223543001
9711857767
10307152385
1114841a151
1286a46281
134b833497
142cb16001
151be731aa
hex124ec601

307152385 has 16 divisors (see below), whose sum is σ = 394349760. Its totient is φ = 228968640.

The previous prime is 307152383. The next prime is 307152401. The reversal of 307152385 is 583251703.

It is not a de Polignac number, because 307152385 - 21 = 307152383 is a prime.

It is a super-2 number, since 2×3071523852 = 188685175222376450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 307152385.

It is not an unprimeable number, because it can be changed into a prime (307152383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20707 + ... + 32296.

It is an arithmetic number, because the mean of its divisors is an integer number (24646860).

Almost surely, 2307152385 is an apocalyptic number.

It is an amenable number.

307152385 is a deficient number, since it is larger than the sum of its proper divisors (87197375).

307152385 is a wasteful number, since it uses less digits than its factorization.

307152385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53088.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 307152385 is about 17525.7634641119. The cubic root of 307152385 is about 674.7112692888.

The spelling of 307152385 in words is "three hundred seven million, one hundred fifty-two thousand, three hundred eighty-five".

Divisors: 1 5 19 61 95 305 1159 5795 53003 265015 1007057 3233183 5035285 16165915 61430477 307152385