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6631036207431 = 3712438473597
BaseRepresentation
bin110000001111110100010…
…0011101100000101000111
3212110220212022111022010120
41200133220203230011013
51332120330232114211
622034131142553023
71253035154530026
oct140375043540507
925426768438116
106631036207431
112127230082a59
128b1180738773
133913c4c58a8c
1418cd2dd728bd
15b774d8b3d06
hex607e88ec147

6631036207431 has 12 divisors (see below), whose sum is σ = 8967662026296. Its totient is φ = 4358427544240.

The previous prime is 6631036207429. The next prime is 6631036207447. The reversal of 6631036207431 is 1347026301366.

It is not a de Polignac number, because 6631036207431 - 21 = 6631036207429 is a prime.

It is a super-2 number, since 2×66310362074312 (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631036707431) 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, 219221676 + ... + 219251921.

It is an arithmetic number, because the mean of its divisors is an integer number (747305168858).

Almost surely, 26631036207431 is an apocalyptic number.

6631036207431 is a deficient number, since it is larger than the sum of its proper divisors (2336625818865).

6631036207431 is an equidigital number, since it uses as much as digits as its factorization.

6631036207431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438473742 (or 438473671 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 42.

The spelling of 6631036207431 in words is "six trillion, six hundred thirty-one billion, thirty-six million, two hundred seven thousand, four hundred thirty-one".

Divisors: 1 3 71 213 5041 15123 438473597 1315420791 31131625387 93394876161 2210345402477 6631036207431