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66882304 = 281371907
BaseRepresentation
bin1111111100100…
…0101100000000
311122211222021101
43333020230000
5114110213204
610345304144
71441330066
oct377105400
9148758241
1066882304
1134831735
121a495054
1310b19738
148c50036
155d11ea4
hex3fc8b00

66882304 has 36 divisors (see below), whose sum is σ = 134548344. Its totient is φ = 33179648.

The previous prime is 66882293. The next prime is 66882307. The reversal of 66882304 is 40328866.

It is not an unprimeable number, because it can be changed into a prime (66882307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34119 + ... + 36025.

It is an arithmetic number, because the mean of its divisors is an integer number (3737454).

Almost surely, 266882304 is an apocalyptic number.

66882304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66882304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67274172).

66882304 is an abundant number, since it is smaller than the sum of its proper divisors (67666040).

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

66882304 is a wasteful number, since it uses less digits than its factorization.

66882304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060 (or 2046 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 66882304 is about 8178.1601842957. The cubic root of 66882304 is about 405.9168457913.

The spelling of 66882304 in words is "sixty-six million, eight hundred eighty-two thousand, three hundred four".

Divisors: 1 2 4 8 16 32 64 128 137 256 274 548 1096 1907 2192 3814 4384 7628 8768 15256 17536 30512 35072 61024 122048 244096 261259 488192 522518 1045036 2090072 4180144 8360288 16720576 33441152 66882304