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383690131 = 11318771283
BaseRepresentation
bin10110110111101…
…010010110010011
3222201222110220121
4112313222112103
51241211041011
6102023451111
712336212056
oct2667522623
9881873817
10383690131
11187646090
12a85b6a97
13616509a6
1438d5aa9d
1523a40e71
hex16dea593

383690131 has 16 divisors (see below), whose sum is σ = 432903168. Its totient is φ = 336909600.

The previous prime is 383690129. The next prime is 383690149. The reversal of 383690131 is 131096383.

It is a cyclic number.

It is not a de Polignac number, because 383690131 - 21 = 383690129 is a prime.

It is a super-2 number, since 2×3836901312 = 294436233253594322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383690171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298416 + ... + 299698.

It is an arithmetic number, because the mean of its divisors is an integer number (27056448).

Almost surely, 2383690131 is an apocalyptic number.

383690131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

383690131 is a deficient number, since it is larger than the sum of its proper divisors (49213037).

383690131 is a wasteful number, since it uses less digits than its factorization.

383690131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 383690131 is about 19588.0098784945. The cubic root of 383690131 is about 726.6526743324.

The spelling of 383690131 in words is "three hundred eighty-three million, six hundred ninety thousand, one hundred thirty-one".

Divisors: 1 11 31 341 877 1283 9647 14113 27187 39773 299057 437503 1125191 12377101 34880921 383690131