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64674231412 = 2276775745541
BaseRepresentation
bin111100001110111000…
…100111010001110100
320011221020222100211011
4330032320213101310
52024423100401122
645413321122004
74446454616350
oct741670472164
9204836870734
1064674231412
1125478a1032a
121064b329304
136138c67cab
1431b7594460
151a37caa377
hexf0ee27474

64674231412 has 48 divisors (see below), whose sum is σ = 131455343488. Its totient is φ = 27267166080.

The previous prime is 64674231407. The next prime is 64674231467. The reversal of 64674231412 is 21413247646.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1397362 + ... + 1442902.

Almost surely, 264674231412 is an apocalyptic number.

It is an amenable number.

64674231412 is an abundant number, since it is smaller than the sum of its proper divisors (66781112076).

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

64674231412 is a wasteful number, since it uses less digits than its factorization.

64674231412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46376 (or 46374 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The spelling of 64674231412 in words is "sixty-four billion, six hundred seventy-four million, two hundred thirty-one thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 67 134 268 469 757 938 1514 1876 3028 5299 10598 21196 45541 50719 91082 101438 182164 202876 318787 355033 637574 710066 1275148 1420132 3051247 6102494 12204988 21358729 34474537 42717458 68949074 85434916 137898148 241321759 482643518 965287036 2309793979 4619587958 9239175916 16168557853 32337115706 64674231412