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80287074 = 2327637199
BaseRepresentation
bin1001100100100…
…01010101100010
312121002000011100
410302101111202
5131023141244
611544455230
71663300050
oct462212542
9177060140
1080287074
114135795a
1222a7a516
1313830c5a
14a93d1d0
1570adb69
hex4c91562

80287074 has 24 divisors (see below), whose sum is σ = 198806400. Its totient is φ = 22939128.

The previous prime is 80287033. The next prime is 80287091. The reversal of 80287074 is 47078208.

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 11 ways as a sum of consecutive naturals, for example, 318474 + ... + 318725.

It is an arithmetic number, because the mean of its divisors is an integer number (8283600).

Almost surely, 280287074 is an apocalyptic number.

80287074 is an abundant number, since it is smaller than the sum of its proper divisors (118519326).

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

80287074 is a wasteful number, since it uses less digits than its factorization.

80287074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637214 (or 637211 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 80287074 is about 8960.3054635431. The cubic root of 80287074 is about 431.4017245590.

The spelling of 80287074 in words is "eighty million, two hundred eighty-seven thousand, seventy-four".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 637199 1274398 1911597 3823194 4460393 5734791 8920786 11469582 13381179 26762358 40143537 80287074