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80795442 = 23713147977
BaseRepresentation
bin1001101000011…
…01011100110010
312122000211111210
410310031130302
5131140423232
612003420550
72000515140
oct464153462
9178024453
1080795442
11416748a2
1223084756
131397b470
14aa32590
15715e5cc
hex4d0d732

80795442 has 32 divisors (see below), whose sum is σ = 198882432. Its totient is φ = 21308544.

The previous prime is 80795423. The next prime is 80795447. The reversal of 80795442 is 24459708.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 80795442.

It is not an unprimeable number, because it can be changed into a prime (80795447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73443 + ... + 74534.

It is an arithmetic number, because the mean of its divisors is an integer number (6215076).

Almost surely, 280795442 is an apocalyptic number.

80795442 is an abundant number, since it is smaller than the sum of its proper divisors (118086990).

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

80795442 is a wasteful number, since it uses less digits than its factorization.

80795442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148002.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 80795442 is about 8988.6284826997. The cubic root of 80795442 is about 432.3103372795.

The spelling of 80795442 in words is "eighty million, seven hundred ninety-five thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 147977 295954 443931 887862 1035839 1923701 2071678 3107517 3847402 5771103 6215034 11542206 13465907 26931814 40397721 80795442