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66879048 = 2338633229
BaseRepresentation
bin1111111100011…
…1111001001000
311122211210210210
43333013321020
5114110112143
610345241120
71441314435
oct377077110
9148753723
1066879048
113482a245
121a4931a0
1310b18102
148c4cb8c
155d11033
hex3fc7e48

66879048 has 32 divisors (see below), whose sum is σ = 167443200. Its totient is φ = 22260288.

The previous prime is 66879047. The next prime is 66879053. The reversal of 66879048 is 84097866.

It is a super-2 number, since 2×668790482 = 8945614122772608, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66878988 and 66879006.

It is not an unprimeable number, because it can be changed into a prime (66879047) 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, 19098 + ... + 22326.

It is an arithmetic number, because the mean of its divisors is an integer number (5232600).

Almost surely, 266879048 is an apocalyptic number.

It is an amenable number.

66879048 is an abundant number, since it is smaller than the sum of its proper divisors (100564152).

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

66879048 is a wasteful number, since it uses less digits than its factorization.

66879048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101 (or 4097 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 66879048 is about 8177.9611150946. The cubic root of 66879048 is about 405.9102586643.

The spelling of 66879048 in words is "sixty-six million, eight hundred seventy-nine thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 24 863 1726 2589 3229 3452 5178 6458 6904 9687 10356 12916 19374 20712 25832 38748 77496 2786627 5573254 8359881 11146508 16719762 22293016 33439524 66879048