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80442808 = 2319529229
BaseRepresentation
bin1001100101101…
…11010110111000
312121100220210021
410302313112320
5131043132213
611552100224
71664516065
oct462672670
9177326707
1080442808
1141453966
1222b34674
1313886ac4
14a97dc6c
1570ded8d
hex4cb75b8

80442808 has 16 divisors (see below), whose sum is σ = 158769000. Its totient is φ = 38104416.

The previous prime is 80442767. The next prime is 80442811. The reversal of 80442808 is 80824408.

It is a congruent number.

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, 264463 + ... + 264766.

Almost surely, 280442808 is an apocalyptic number.

It is an amenable number.

80442808 is a deficient number, since it is larger than the sum of its proper divisors (78326192).

80442808 is a wasteful number, since it uses less digits than its factorization.

80442808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529254 (or 529250 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 80442808 is about 8968.9914706170. The cubic root of 80442808 is about 431.6804764609.

The spelling of 80442808 in words is "eighty million, four hundred forty-two thousand, eight hundred eight".

Divisors: 1 2 4 8 19 38 76 152 529229 1058458 2116916 4233832 10055351 20110702 40221404 80442808