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80992254 = 2371928387
BaseRepresentation
bin1001101001111…
…01011111111110
312122101211111010
410310331133332
5131213223004
612011540050
72002265010
oct464753776
9178354433
1080992254
1141799752
122315a626
1313a19c15
14aa841b0
15719ca89
hex4d3d7fe

80992254 has 16 divisors (see below), whose sum is σ = 185125248. Its totient is φ = 23140632.

The previous prime is 80992237. The next prime is 80992279. The reversal of 80992254 is 45229908.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964152 + ... + 964235.

It is an arithmetic number, because the mean of its divisors is an integer number (11570328).

Almost surely, 280992254 is an apocalyptic number.

80992254 is an abundant number, since it is smaller than the sum of its proper divisors (104132994).

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

80992254 is a wasteful number, since it uses less digits than its factorization.

80992254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928399.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 80992254 is about 8999.5696563780. The cubic root of 80992254 is about 432.6610784733.

The spelling of 80992254 in words is "eighty million, nine hundred ninety-two thousand, two hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 1928387 3856774 5785161 11570322 13498709 26997418 40496127 80992254