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51479082680 = 2352161595547
BaseRepresentation
bin101111111100011001…
…000111011010111000
311220212122222100121212
4233330121013122320
51320412121121210
635352115222252
73501461661104
oct577431073270
9156778870555
1051479082680
111a917666833
129b882a7988
134b1531a18c
1426c4d4a904
15151465b805
hexbfc6476b8

51479082680 has 32 divisors (see below), whose sum is σ = 115881729840. Its totient is φ = 20582069760.

The previous prime is 51479082679. The next prime is 51479082689. The reversal of 51479082680 is 8628097415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51479082689) 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, 211334 + ... + 384213.

Almost surely, 251479082680 is an apocalyptic number.

It is an amenable number.

51479082680 is an abundant number, since it is smaller than the sum of its proper divisors (64402647160).

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

51479082680 is a wasteful number, since it uses less digits than its factorization.

51479082680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597719 (or 597715 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 51479082680 in words is "fifty-one billion, four hundred seventy-nine million, eighty-two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2161 4322 8644 10805 17288 21610 43220 86440 595547 1191094 2382188 2977735 4764376 5955470 11910940 23821880 1286977067 2573954134 5147908268 6434885335 10295816536 12869770670 25739541340 51479082680