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80071916 = 22131152809
BaseRepresentation
bin1001100010111…
…00110011101100
312120200002000112
410301130303230
5130444300131
611540115152
71661412551
oct461346354
9176602015
1080071916
1141220241
1222995ab8
1313787042
14a8c4a28
15706a02b
hex4c5ccec

80071916 has 12 divisors (see below), whose sum is σ = 141196440. Its totient is φ = 39730080.

The previous prime is 80071907. The next prime is 80071939. The reversal of 80071916 is 61917008.

It is a super-2 number, since 2×800719162 = 12823023463822112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75881 + ... + 76928.

It is an arithmetic number, because the mean of its divisors is an integer number (11766370).

Almost surely, 280071916 is an apocalyptic number.

It is an amenable number.

80071916 is a deficient number, since it is larger than the sum of its proper divisors (61124524).

80071916 is a wasteful number, since it uses less digits than its factorization.

80071916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152944 (or 152942 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 80071916 is about 8948.2912335261. The cubic root of 80071916 is about 431.0160146073.

The spelling of 80071916 in words is "eighty million, seventy-one thousand, nine hundred sixteen".

Divisors: 1 2 4 131 262 524 152809 305618 611236 20017979 40035958 80071916