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80424378 = 23219235159
BaseRepresentation
bin1001100101100…
…10110110111010
312121022222111200
410302302312322
5131042040003
611551435030
71664411256
oct462626672
9177288450
1080424378
1141441031
1222b25a76
131387b5b8
14a977266
1570d96a3
hex4cb2dba

80424378 has 24 divisors (see below), whose sum is σ = 183424800. Its totient is φ = 25397064.

The previous prime is 80424367. The next prime is 80424391. The reversal of 80424378 is 87342408.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117238 + ... + 117921.

It is an arithmetic number, because the mean of its divisors is an integer number (7642700).

Almost surely, 280424378 is an apocalyptic number.

80424378 is an abundant number, since it is smaller than the sum of its proper divisors (103000422).

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

80424378 is a wasteful number, since it uses less digits than its factorization.

80424378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235186 (or 235183 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 80424378 is about 8967.9639829785. The cubic root of 80424378 is about 431.6475069553.

The spelling of 80424378 in words is "eighty million, four hundred twenty-four thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 235159 470318 705477 1410954 2116431 4232862 4468021 8936042 13404063 26808126 40212189 80424378