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64760132740 = 22531104451827
BaseRepresentation
bin111100010100000000…
…010011010010000100
320012011020121121021211
4330110000103102010
52030112043221430
645430030221204
74451550021502
oct742400232204
9205136547254
1064760132740
1125512452266
1210674054804
1361509b3494
1431c4b55672
151a405c772a
hexf14013484

64760132740 has 24 divisors (see below), whose sum is σ = 140383256832. Its totient is φ = 25068438240.

The previous prime is 64760132719. The next prime is 64760132743. The reversal of 64760132740 is 4723106746.

It is a junction number, because it is equal to n+sod(n) for n = 64760132693 and 64760132702.

It is not an unprimeable number, because it can be changed into a prime (64760132743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52225294 + ... + 52226533.

It is an arithmetic number, because the mean of its divisors is an integer number (5849302368).

Almost surely, 264760132740 is an apocalyptic number.

It is an amenable number.

64760132740 is an abundant number, since it is smaller than the sum of its proper divisors (75623124092).

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

64760132740 is a wasteful number, since it uses less digits than its factorization.

64760132740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104451867 (or 104451865 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 64760132740 in words is "sixty-four billion, seven hundred sixty million, one hundred thirty-two thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 104451827 208903654 417807308 522259135 1044518270 2089036540 3238006637 6476013274 12952026548 16190033185 32380066370 64760132740