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31470349337394 = 23112411901556159
BaseRepresentation
bin1110010011111010000101…
…11111100100001100110010
311010102112110202101011122120
413021331002333210030302
513111102233412244034
6150533140124215110
76425441410503252
oct711750277441462
9133375422334576
1031470349337394
11a033555852800
1236431b839a496
131473844974186
147ab25cb45962
15398939051c49
hex1c9f42fe4332

31470349337394 has 96 divisors (see below), whose sum is σ = 70907543562240. Its totient is φ = 9298961760000.

The previous prime is 31470349337387. The next prime is 31470349337417. The reversal of 31470349337394 is 49373394307413.

It is a super-2 number, since 2×314703493373942 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56307087 + ... + 56863245.

It is an arithmetic number, because the mean of its divisors is an integer number (738620245440).

Almost surely, 231470349337394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31470349337394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35453771781120).

31470349337394 is an abundant number, since it is smaller than the sum of its proper divisors (39437194224846).

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

31470349337394 is a wasteful number, since it uses less digits than its factorization.

31470349337394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558128 (or 558117 counting only the distinct ones).

The product of its (nonzero) digits is 61725888, while the sum is 60.

The spelling of 31470349337394 in words is "thirty-one trillion, four hundred seventy billion, three hundred forty-nine million, three hundred thirty-seven thousand, three hundred ninety-four".

Divisors: 1 2 3 6 11 22 33 41 66 82 121 123 242 246 363 451 726 902 1353 1901 2706 3802 4961 5703 9922 11406 14883 20911 29766 41822 62733 77941 125466 155882 230021 233823 460042 467646 556159 690063 857351 1112318 1380126 1668477 1714702 2572053 3336954 5144106 6117749 9430861 12235498 18353247 18861722 22802519 28292583 36706494 45605038 56585166 67295239 68407557 134590478 136815114 201885717 250827709 403771434 501655418 752483127 1057258259 1504966254 2114516518 2759104799 3171774777 5518209598 6343549554 8277314397 11629840849 16554628794 23259681698 34889522547 43347588619 69779045094 86695177238 127928249339 130042765857 255856498678 260085531714 383784748017 476823474809 767569496034 953646949618 1430470424427 2860940848854 5245058222899 10490116445798 15735174668697 31470349337394