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31132134244 = 2271577189983
BaseRepresentation
bin11100111111100111…
…101010101101100100
32222100122121021121001
4130333213222231210
51002224311243434
622145113403044
72151324526531
oct347747525544
988318537531
1031132134244
1112226307272
12604a109484
132c21ab7313
14171494dd88
15c2320b114
hex73f9eab64

31132134244 has 24 divisors (see below), whose sum is σ = 55344619008. Its totient is φ = 15320148480.

The previous prime is 31132134217. The next prime is 31132134251. The reversal of 31132134244 is 44243123113.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68877 + ... + 258859.

It is an arithmetic number, because the mean of its divisors is an integer number (2306025792).

Almost surely, 231132134244 is an apocalyptic number.

It is an amenable number.

31132134244 is a deficient number, since it is larger than the sum of its proper divisors (24212484764).

31132134244 is a wasteful number, since it uses less digits than its factorization.

31132134244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190635 (or 190633 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

Adding to 31132134244 its reverse (44243123113), we get a palindrome (75375257357).

The spelling of 31132134244 in words is "thirty-one billion, one hundred thirty-two million, one hundred thirty-four thousand, two hundred forty-four".

Divisors: 1 2 4 71 142 284 577 1154 2308 40967 81934 163868 189983 379966 759932 13488793 26977586 53955172 109620191 219240382 438480764 7783033561 15566067122 31132134244