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31497240614 = 2719233718493
BaseRepresentation
bin11101010101011000…
…011100000000100110
310000022002121121101012
4131111120130000212
51004001243144424
622245235102222
72163350061560
oct352530340046
9100262547335
1031497240614
11123a340a074
126130441972
132c7c62c3a8
14174b230330
15c452cab0e
hex75561c026

31497240614 has 48 divisors (see below), whose sum is σ = 57158887968. Its totient is φ = 12749716224.

The previous prime is 31497240583. The next prime is 31497240631. The reversal of 31497240614 is 41604279413.

It is a super-2 number, since 2×314972406142 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 1693952 + ... + 1712444.

It is an arithmetic number, because the mean of its divisors is an integer number (1190810166).

Almost surely, 231497240614 is an apocalyptic number.

31497240614 is a deficient number, since it is larger than the sum of its proper divisors (25661647354).

31497240614 is a wasteful number, since it uses less digits than its factorization.

31497240614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18877 (or 18858 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 31497240614 in words is "thirty-one billion, four hundred ninety-seven million, two hundred forty thousand, six hundred fourteen".

Divisors: 1 2 7 14 19 38 133 266 337 361 674 722 2359 2527 4718 5054 6403 12806 18493 36986 44821 89642 121657 129451 243314 258902 351367 702734 851599 1703198 2459569 4919138 6232141 6675973 12464282 13351946 43624987 46731811 87249974 93463622 118410679 236821358 828874753 1657749506 2249802901 4499605802 15748620307 31497240614