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3139663231 = 2337299713
BaseRepresentation
bin1011101100100011…
…0111010101111111
322002210211102021101
42323020313111333
522412223210411
61235313513531
7140542461055
oct27310672577
98083742241
103139663231
111371292501
127375728a7
133b06044c3
1421ada01d5
151359808c1
hexbb23757f

3139663231 has 12 divisors (see below), whose sum is σ = 3367142352. Its totient is φ = 2921960448.

The previous prime is 3139663223. The next prime is 3139663243. The reversal of 3139663231 is 1323669313.

It is not a de Polignac number, because 3139663231 - 23 = 3139663223 is a prime.

It is a super-2 number, since 2×31396632312 = 19714970408186718722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3139663211) 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, 18370 + ... + 81343.

It is an arithmetic number, because the mean of its divisors is an integer number (280595196).

Almost surely, 23139663231 is an apocalyptic number.

3139663231 is a deficient number, since it is larger than the sum of its proper divisors (227479121).

3139663231 is an equidigital number, since it uses as much as digits as its factorization.

3139663231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99810 (or 99773 counting only the distinct ones).

The product of its digits is 52488, while the sum is 37.

The square root of 3139663231 is about 56032.6978736523. The cubic root of 3139663231 is about 1464.2919976991.

The spelling of 3139663231 in words is "three billion, one hundred thirty-nine million, six hundred sixty-three thousand, two hundred thirty-one".

Divisors: 1 23 37 851 1369 31487 99713 2293399 3689381 84855763 136507097 3139663231