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80056556 = 2220014139
BaseRepresentation
bin1001100010110…
…01000011101100
312120122021221122
410301121003230
5130443302211
611535520112
71661320016
oct461310354
9176567848
1080056556
114120a748
1222989038
1313780058
14a8bd1b6
1570656db
hex4c590ec

80056556 has 6 divisors (see below), whose sum is σ = 140098980. Its totient is φ = 40028276.

The previous prime is 80056523. The next prime is 80056573. The reversal of 80056556 is 65565008.

It is a super-2 number, since 2×800565562 = 12818104317162272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10007066 + ... + 10007073.

It is an arithmetic number, because the mean of its divisors is an integer number (23349830).

Almost surely, 280056556 is an apocalyptic number.

It is an amenable number.

80056556 is a deficient number, since it is larger than the sum of its proper divisors (60042424).

80056556 is a wasteful number, since it uses less digits than its factorization.

80056556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20014143 (or 20014141 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 80056556 is about 8947.4329279408. The cubic root of 80056556 is about 430.9884525952.

The spelling of 80056556 in words is "eighty million, fifty-six thousand, five hundred fifty-six".

Divisors: 1 2 4 20014139 40028278 80056556