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72050886 = 2324393089
BaseRepresentation
bin1000100101101…
…10100011000110
312000120120020100
410102312203012
5121421112021
611052144530
71533264615
oct422664306
9160516210
1072050886
1137741996
1220168146
1311c0917b
1497d787c
1564d3626
hex44b68c6

72050886 has 24 divisors (see below), whose sum is σ = 159742440. Its totient is φ = 23458176.

The previous prime is 72050873. The next prime is 72050893. The reversal of 72050886 is 68805027.

72050886 is a `hidden beast` number, since 72 + 0 + 508 + 86 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72050886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45771 + ... + 47318.

It is an arithmetic number, because the mean of its divisors is an integer number (6655935).

Almost surely, 272050886 is an apocalyptic number.

72050886 is an abundant number, since it is smaller than the sum of its proper divisors (87691554).

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

72050886 is a wasteful number, since it uses less digits than its factorization.

72050886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93140 (or 93137 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 72050886 is about 8488.2793309363. The cubic root of 72050886 is about 416.1147481468.

The spelling of 72050886 in words is "seventy-two million, fifty thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 93089 186178 279267 558534 837801 1675602 4002827 8005654 12008481 24016962 36025443 72050886