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383407131 = 3199642223
BaseRepresentation
bin10110110110100…
…101010000011011
3222201110002201010
4112312211100123
51241123012011
6102013425003
712333623022
oct2666452033
9881402633
10383407131
111874724a8
12a849b163
1361581c33
1438cc58b9
15239d71a6
hex16da541b

383407131 has 8 divisors (see below), whose sum is σ = 513779200. Its totient is φ = 254319912.

The previous prime is 383407127. The next prime is 383407139. The reversal of 383407131 is 131704383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 383407131 - 22 = 383407127 is a prime.

It is a super-2 number, since 2×3834071312 = 294002056203302322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383407139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320515 + ... + 321708.

It is an arithmetic number, because the mean of its divisors is an integer number (64222400).

Almost surely, 2383407131 is an apocalyptic number.

383407131 is a deficient number, since it is larger than the sum of its proper divisors (130372069).

383407131 is a wasteful number, since it uses less digits than its factorization.

383407131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642425.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 383407131 is about 19580.7847391263. The cubic root of 383407131 is about 726.4739769324.

The spelling of 383407131 in words is "three hundred eighty-three million, four hundred seven thousand, one hundred thirty-one".

Divisors: 1 3 199 597 642223 1926669 127802377 383407131