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80372904 = 23310093319
BaseRepresentation
bin1001100101001…
…10010010101000
312121020100220020
410302212102220
5131033413104
611550400440
71664105223
oct462462250
9177210806
1080372904
1141406397
1222b00120
1313861041
14a9625ba
1570c92d9
hex4ca64a8

80372904 has 32 divisors (see below), whose sum is σ = 201192000. Its totient is φ = 26756352.

The previous prime is 80372899. The next prime is 80372911. The reversal of 80372904 is 40927308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22557 + ... + 25875.

It is an arithmetic number, because the mean of its divisors is an integer number (6287250).

Almost surely, 280372904 is an apocalyptic number.

It is an amenable number.

80372904 is an abundant number, since it is smaller than the sum of its proper divisors (120819096).

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

80372904 is a wasteful number, since it uses less digits than its factorization.

80372904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337 (or 4333 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 80372904 is about 8965.0936414518. The cubic root of 80372904 is about 431.5553982099. Note that the first 3 decimals are identical.

The spelling of 80372904 in words is "eighty million, three hundred seventy-two thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 24 1009 2018 3027 3319 4036 6054 6638 8072 9957 12108 13276 19914 24216 26552 39828 79656 3348871 6697742 10046613 13395484 20093226 26790968 40186452 80372904