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64079018910 = 2325711989099
BaseRepresentation
bin111011101011011010…
…000011101110011110
320010101202222102202200
4323223122003232132
52022213212101120
645234255432330
74425636450054
oct735332035636
9203352872680
1064079018910
11251a2a32375
1210503b256a6
13607285754a
14315c4d61d4
151a008d5e90
hexeeb683b9e

64079018910 has 24 divisors (see below), whose sum is σ = 166605449400. Its totient is φ = 17087738352.

The previous prime is 64079018897. The next prime is 64079018921. The reversal of 64079018910 is 1981097046.

It is a happy number.

It is a super-2 number, since 2×640790189102 (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 11 ways as a sum of consecutive naturals, for example, 355994460 + ... + 355994639.

It is an arithmetic number, because the mean of its divisors is an integer number (6941893725).

Almost surely, 264079018910 is an apocalyptic number.

64079018910 is an abundant number, since it is smaller than the sum of its proper divisors (102526430490).

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

64079018910 is a wasteful number, since it uses less digits than its factorization.

64079018910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711989112 (or 711989109 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 64079018910 in words is "sixty-four billion, seventy-nine million, eighteen thousand, nine hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 711989099 1423978198 2135967297 3559945495 4271934594 6407901891 7119890990 10679836485 12815803782 21359672970 32039509455 64079018910