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80312946 = 2371912213
BaseRepresentation
bin1001100100101…
…11101001110010
312121010022122120
410302113221302
5131030003241
611545215110
71663435350
oct462275162
9177108576
1080312946
114137533a
1222a91496
131383c96c
14a9487d0
1570b6666
hex4c97a72

80312946 has 16 divisors (see below), whose sum is σ = 183572544. Its totient is φ = 22946544.

The previous prime is 80312933. The next prime is 80312957. The reversal of 80312946 is 64921308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956065 + ... + 956148.

It is an arithmetic number, because the mean of its divisors is an integer number (11473284).

Almost surely, 280312946 is an apocalyptic number.

80312946 is an abundant number, since it is smaller than the sum of its proper divisors (103259598).

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

80312946 is a wasteful number, since it uses less digits than its factorization.

80312946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912225.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 80312946 is about 8961.7490480374. The cubic root of 80312946 is about 431.4480584050.

The spelling of 80312946 in words is "eighty million, three hundred twelve thousand, nine hundred forty-six".

Divisors: 1 2 3 6 7 14 21 42 1912213 3824426 5736639 11473278 13385491 26770982 40156473 80312946