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31467421464 = 23317731056521
BaseRepresentation
bin11101010011100110…
…101011111100011000
310000020000111122012020
4131103212223330120
51003421124441324
622242252014440
72162535445353
oct352346537430
9100200448166
1031467421464
11123885a2546
126122461420
132c763bb81b
1417472ab29a
15c4288a679
hex7539abf18

31467421464 has 64 divisors (see below), whose sum is σ = 84437238240. Its totient is φ = 9736888320.

The previous prime is 31467421423. The next prime is 31467421483. The reversal of 31467421464 is 46412476413.

It is a super-2 number, since 2×314674214642 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498477 + ... + 558044.

Almost surely, 231467421464 is an apocalyptic number.

31467421464 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31467421464 is an abundant number, since it is smaller than the sum of its proper divisors (52969816776).

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

31467421464 is a wasteful number, since it uses less digits than its factorization.

31467421464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056620 (or 1056616 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

Adding to 31467421464 its reverse (46412476413), we get a palindrome (77879897877).

The spelling of 31467421464 in words is "thirty-one billion, four hundred sixty-seven million, four hundred twenty-one thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 73 102 136 146 204 219 292 408 438 584 876 1241 1752 2482 3723 4964 7446 9928 14892 29784 1056521 2113042 3169563 4226084 6339126 8452168 12678252 17960857 25356504 35921714 53882571 71843428 77126033 107765142 143686856 154252066 215530284 231378099 308504132 431060568 462756198 617008264 925512396 1311142561 1851024792 2622285122 3933427683 5244570244 7866855366 10489140488 15733710732 31467421464