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3856683131 = 72281280099
BaseRepresentation
bin1110010111100000…
…0101000001111011
3100221210000210122222
43211320011001323
530344302330011
61434410034255
7164400160100
oct34570050173
910853023588
103856683131
1116a9aa7134
128b771898b
13496022732
142882c8aa7
151788b5ddb
hexe5e0507b

3856683131 has 12 divisors (see below), whose sum is σ = 4502327400. Its totient is φ = 3293952480.

The previous prime is 3856683101. The next prime is 3856683157. The reversal of 3856683131 is 1313866583.

3856683131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3856683131 - 226 = 3789574267 is a prime.

It is a super-2 number, since 2×38566831312 = 29748009545879926322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3856683101) 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, 126281 + ... + 153818.

It is an arithmetic number, because the mean of its divisors is an integer number (375193950).

Almost surely, 23856683131 is an apocalyptic number.

3856683131 is a deficient number, since it is larger than the sum of its proper divisors (645644269).

3856683131 is a wasteful number, since it uses less digits than its factorization.

3856683131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280394 (or 280387 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 3856683131 is about 62102.1990834463. The cubic root of 3856683131 is about 1568.2115666375.

The spelling of 3856683131 in words is "three billion, eight hundred fifty-six million, six hundred eighty-three thousand, one hundred thirty-one".

Divisors: 1 7 49 281 1967 13769 280099 1960693 13724851 78707819 550954733 3856683131