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385362131 = 7112454973
BaseRepresentation
bin10110111110000…
…010100011010011
3222212010102110112
4112332002203103
51242123042011
6102123351535
712356344520
oct2676024323
9885112415
10385362131
11188588300
12a90825ab
1361ab7a3b
1439274147
1523c7158b
hex16f828d3

385362131 has 12 divisors (see below), whose sum is σ = 484092336. Its totient is φ = 300281520.

The previous prime is 385362113. The next prime is 385362139. The reversal of 385362131 is 131263583.

It is not a de Polignac number, because 385362131 - 222 = 381167827 is a prime.

It is a super-2 number, since 2×3853621312 = 297007944017722322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (385362139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226640 + ... + 228333.

It is an arithmetic number, because the mean of its divisors is an integer number (40341028).

Almost surely, 2385362131 is an apocalyptic number.

385362131 is a deficient number, since it is larger than the sum of its proper divisors (98730205).

385362131 is a wasteful number, since it uses less digits than its factorization.

385362131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455002 (or 454991 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 385362131 is about 19630.6426537696. The cubic root of 385362131 is about 727.7066522044.

The spelling of 385362131 in words is "three hundred eighty-five million, three hundred sixty-two thousand, one hundred thirty-one".

Divisors: 1 7 11 77 121 847 454973 3184811 5004703 35032921 55051733 385362131