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31348853460 = 223251039167623
BaseRepresentation
bin11101001100100010…
…011000101011010100
32222220202101202110200
4131030202120223110
51003200301302320
622222414420500
72156565600141
oct351442305324
988822352420
1031348853460
1112327679661
1260aa801730
132c57976642
1417356453c8
15c37269290
hex74c898ad4

31348853460 has 72 divisors (see below), whose sum is σ = 95183612160. Its totient is φ = 8351598528.

The previous prime is 31348853423. The next prime is 31348853527. The reversal of 31348853460 is 6435884313.

31348853460 is a `hidden beast` number, since 3 + 1 + 34 + 88 + 534 + 6 + 0 = 666.

It is a super-2 number, since 2×313488534602 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 103209 + ... + 270831.

Almost surely, 231348853460 is an apocalyptic number.

31348853460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31348853460 is an abundant number, since it is smaller than the sum of its proper divisors (63834758700).

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

31348853460 is a wasteful number, since it uses less digits than its factorization.

31348853460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168677 (or 168672 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 31348853460 in words is "thirty-one billion, three hundred forty-eight million, eight hundred fifty-three thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1039 2078 3117 4156 5195 6234 9351 10390 12468 15585 18702 20780 31170 37404 46755 62340 93510 167623 187020 335246 502869 670492 838115 1005738 1508607 1676230 2011476 2514345 3017214 3352460 5028690 6034428 7543035 10057380 15086070 30172140 174160297 348320594 522480891 696641188 870801485 1044961782 1567442673 1741602970 2089923564 2612404455 3134885346 3483205940 5224808910 6269770692 7837213365 10449617820 15674426730 31348853460