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445072124 = 22715895433
BaseRepresentation
bin11010100001110…
…100001011111100
31011000111000011202
4122201310023330
51402414301444
6112055235032
714013023240
oct3241641374
91130430152
10445072124
11209260302
12105078a78
13712929b3
1443178420
152911834e
hex1a8742fc

445072124 has 12 divisors (see below), whose sum is σ = 890144304. Its totient is φ = 190745184.

The previous prime is 445072123. The next prime is 445072127. The reversal of 445072124 is 421270544.

445072124 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445072123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7947689 + ... + 7947744.

It is an arithmetic number, because the mean of its divisors is an integer number (74178692).

Almost surely, 2445072124 is an apocalyptic number.

It is an amenable number.

445072124 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

445072124 is a wasteful number, since it uses less digits than its factorization.

445072124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15895444 (or 15895442 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 445072124 is about 21096.7325432163. The cubic root of 445072124 is about 763.5019162413.

The spelling of 445072124 in words is "four hundred forty-five million, seventy-two thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 15895433 31790866 63581732 111268031 222536062 445072124