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31474001757 = 31122373113457
BaseRepresentation
bin11101010011111111…
…110010011101011101
310000020110212221122210
4131103333302131131
51003424321024012
622243045031033
72162645413032
oct352377623535
9100213787583
1031474001757
1112391287400
1261246b5479
132c778839a3
141748101389
15c4323a23c
hex753ff275d

31474001757 has 96 divisors (see below), whose sum is σ = 49331568384. Its totient is φ = 17797570560.

The previous prime is 31474001731. The next prime is 31474001759. The reversal of 31474001757 is 75710047413.

It is not a de Polignac number, because 31474001757 - 211 = 31473999709 is a prime.

It is a super-2 number, since 2×314740017572 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31474001759) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 68870673 + ... + 68871129.

It is an arithmetic number, because the mean of its divisors is an integer number (513870504).

Almost surely, 231474001757 is an apocalyptic number.

It is an amenable number.

31474001757 is a deficient number, since it is larger than the sum of its proper divisors (17857566627).

31474001757 is a wasteful number, since it uses less digits than its factorization.

31474001757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 39.

The spelling of 31474001757 in words is "thirty-one billion, four hundred seventy-four million, one thousand, seven hundred fifty-seven".

Divisors: 1 3 11 23 33 69 73 113 121 219 253 339 363 457 759 803 1243 1371 1679 2409 2599 2783 3729 5027 5037 7797 8249 8349 8833 10511 13673 15081 18469 24747 26499 28589 31533 33361 41019 51641 55297 55407 85767 90739 100083 115621 154923 165891 189727 203159 272217 314479 346863 366971 568051 569181 609477 767303 943437 998129 1100913 1187743 1271831 1704153 2086997 2301909 2994387 3563229 3769793 3815493 4036681 6248561 6260991 8440333 11309379 12110043 13065173 18745683 22956967 25320999 39195519 41467723 68870901 86705239 92843663 124403169 143716903 260115717 278530989 431150709 456144953 953757629 1368434859 2861272887 10491333919 31474001757