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80548542 = 2324474919
BaseRepresentation
bin1001100110100…
…01001010111110
312121120021211100
410303101022332
5131110023132
611554233530
71665436254
oct463211276
9177507740
1080548542
1141516348
1222b858a6
13138c2c79
14a9aa5d4
15711137c
hex4cd12be

80548542 has 12 divisors (see below), whose sum is σ = 174521880. Its totient is φ = 26849508.

The previous prime is 80548541. The next prime is 80548549. The reversal of 80548542 is 24584508.

It is a junction number, because it is equal to n+sod(n) for n = 80548497 and 80548506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80548541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2237442 + ... + 2237477.

It is an arithmetic number, because the mean of its divisors is an integer number (14543490).

Almost surely, 280548542 is an apocalyptic number.

80548542 is an abundant number, since it is smaller than the sum of its proper divisors (93973338).

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

80548542 is a wasteful number, since it uses less digits than its factorization.

80548542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474927 (or 4474924 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 80548542 is about 8974.8839546815. The cubic root of 80548542 is about 431.8695272138.

The spelling of 80548542 in words is "eighty million, five hundred forty-eight thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 4474919 8949838 13424757 26849514 40274271 80548542