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31330123014 = 23476112714341
BaseRepresentation
bin11101001011011010…
…111011110100000110
32222212110011011010110
4131023122323310012
51003131002414024
622220505133450
72156250436341
oct351332736406
988773134113
1031330123014
1112318046153
1260a448a286
132c53b19038
141732d6b458
15c357b9629
hex74b6bbd06

31330123014 has 64 divisors (see below), whose sum is σ = 65559232512. Its totient is φ = 9973756800.

The previous prime is 31330123007. The next prime is 31330123031. The reversal of 31330123014 is 41032103313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2177484 + ... + 2191824.

It is an arithmetic number, because the mean of its divisors is an integer number (1024363008).

Almost surely, 231330123014 is an apocalyptic number.

31330123014 is an abundant number, since it is smaller than the sum of its proper divisors (34229109498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31330123014 is a wasteful number, since it uses less digits than its factorization.

31330123014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14581.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31330123014 its reverse (41032103313), we get a palindrome (72362226327).

The spelling of 31330123014 in words is "thirty-one billion, three hundred thirty million, one hundred twenty-three thousand, fourteen".

Divisors: 1 2 3 6 47 61 94 122 127 141 183 254 282 366 381 762 2867 5734 5969 7747 8601 11938 14341 15494 17202 17907 23241 28682 35814 43023 46482 86046 364109 674027 728218 874801 1092327 1348054 1749602 1821307 2022081 2184654 2624403 3642614 4044162 5248806 5463921 10927842 41115647 82231294 85601429 111099727 123346941 171202858 222199454 246693882 256804287 333299181 513608574 666598362 5221687169 10443374338 15665061507 31330123014