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1310431012 = 221141733991
BaseRepresentation
bin100111000011011…
…1001011100100100
310101022210210101221
41032012321130210
510140432243022
6334011030124
744321323402
oct11606713444
93338723357
101310431012
11612782240
12306a3b344
1317b64aa87
14c6078472
157a0a0cc7
hex4e1b9724

1310431012 has 48 divisors (see below), whose sum is σ = 2568835584. Its totient is φ = 579744000.

The previous prime is 1310430991. The next prime is 1310431019. The reversal of 1310431012 is 2101340131.

It is a super-2 number, since 2×13104310122 = 3434458874422688288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1310431019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1321837 + ... + 1322827.

It is an arithmetic number, because the mean of its divisors is an integer number (53517408).

Almost surely, 21310431012 is an apocalyptic number.

It is an amenable number.

1310431012 is a deficient number, since it is larger than the sum of its proper divisors (1258404572).

1310431012 is a wasteful number, since it uses less digits than its factorization.

1310431012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780 (or 1778 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1310431012 is about 36199.8758561407. The cubic root of 1310431012 is about 1094.3041698622.

Adding to 1310431012 its reverse (2101340131), we get a palindrome (3411771143).

The spelling of 1310431012 in words is "one billion, three hundred ten million, four hundred thirty-one thousand, twelve".

Divisors: 1 2 4 11 22 41 44 82 164 451 733 902 991 1466 1804 1982 2932 3964 8063 10901 16126 21802 30053 32252 40631 43604 60106 81262 120212 162524 330583 446941 661166 726403 893882 1322332 1452806 1787764 2905612 7990433 15980866 29782523 31961732 59565046 119130092 327607753 655215506 1310431012