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80272692 = 223217312889
BaseRepresentation
bin1001100100011…
…01110100110100
312121001021102200
410302031310310
5131022211232
611544304500
71663210113
oct462156464
9177037380
1080272692
1141348075
1222a72130
1313827546
14a937c7a
1570a977c
hex4c8dd34

80272692 has 36 divisors (see below), whose sum is σ = 204100260. Its totient is φ = 26600832.

The previous prime is 80272681. The next prime is 80272727. The reversal of 80272692 is 29627208.

It can be written as a sum of positive squares in 2 ways, for example, as 64064016 + 16208676 = 8004^2 + 4026^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 217 + ... + 12672.

Almost surely, 280272692 is an apocalyptic number.

It is an amenable number.

80272692 is an abundant number, since it is smaller than the sum of its proper divisors (123827568).

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

80272692 is a wasteful number, since it uses less digits than its factorization.

80272692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13072 (or 13067 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 80272692 is about 8959.5028879955. The cubic root of 80272692 is about 431.3759637078.

The spelling of 80272692 in words is "eighty million, two hundred seventy-two thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 173 346 519 692 1038 1557 2076 3114 6228 12889 25778 38667 51556 77334 116001 154668 232002 464004 2229797 4459594 6689391 8919188 13378782 20068173 26757564 40136346 80272692