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31140332514 = 23259259111317
BaseRepresentation
bin11101000000000110…
…111100001111100010
32222101020000210111200
4131000012330033202
51002233411120024
622150005222030
72151454313304
oct350006741742
988336023450
1031140332514
111222a9a67a5
126050a01916
132c236c7a75
141715a85974
15c23cca2c9
hex7401bc3e2

31140332514 has 48 divisors (see below), whose sum is σ = 68646839040. Its totient is φ = 10199337120.

The previous prime is 31140332467. The next prime is 31140332537. The reversal of 31140332514 is 41523304113.

It is a happy number.

31140332514 is a `hidden beast` number, since 3 + 1 + 1 + 403 + 3 + 251 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2745984 + ... + 2757300.

It is an arithmetic number, because the mean of its divisors is an integer number (1430142480).

Almost surely, 231140332514 is an apocalyptic number.

31140332514 is an abundant number, since it is smaller than the sum of its proper divisors (37506506526).

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

31140332514 is a wasteful number, since it uses less digits than its factorization.

31140332514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13975 (or 13972 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 31140332514 its reverse (41523304113), we get a palindrome (72663636627).

The spelling of 31140332514 in words is "thirty-one billion, one hundred forty million, three hundred thirty-two thousand, five hundred fourteen".

Divisors: 1 2 3 6 9 18 59 118 177 354 531 1062 2591 5182 7773 11317 15546 22634 23319 33951 46638 67902 101853 152869 203706 305738 458607 667703 917214 1335406 1375821 2003109 2751642 4006218 6009327 12018654 29322347 58644694 87967041 175934082 263901123 527802246 1730018473 3460036946 5190055419 10380110838 15570166257 31140332514