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6131211764 = 221980673839
BaseRepresentation
bin1011011010111001…
…01101110111110100
3120211021221211101012
411231130231313310
5100024042234024
62452221051352
7304636303646
oct55534556764
916737854335
106131211764
112666a00167
1212313b6b58
13769319c72
14422406896
1525d40550e
hex16d72ddf4

6131211764 has 12 divisors (see below), whose sum is σ = 11294337600. Its totient is φ = 2904258168.

The previous prime is 6131211761. The next prime is 6131211797. The reversal of 6131211764 is 4671121316.

It is a self number, because there is not a number n which added to its sum of digits gives 6131211764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6131211761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40336844 + ... + 40336995.

It is an arithmetic number, because the mean of its divisors is an integer number (941194800).

Almost surely, 26131211764 is an apocalyptic number.

It is an amenable number.

6131211764 is a deficient number, since it is larger than the sum of its proper divisors (5163125836).

6131211764 is a wasteful number, since it uses less digits than its factorization.

6131211764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80673862 (or 80673860 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 6131211764 is about 78302.0546601429. The cubic root of 6131211764 is about 1830.2711696661.

The spelling of 6131211764 in words is "six billion, one hundred thirty-one million, two hundred eleven thousand, seven hundred sixty-four".

Divisors: 1 2 4 19 38 76 80673839 161347678 322695356 1532802941 3065605882 6131211764