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54122920 = 2353493877
BaseRepresentation
bin1100111001110…
…1100110101000
310202211201200121
43032131212220
5102323413140
65212013024
71225015525
oct316354650
9122751617
1054122920
1128607395
1216161174
13b29cbc7
14728c14c
154b4164a
hex339d9a8

54122920 has 32 divisors (see below), whose sum is σ = 122157000. Its totient is φ = 21581568.

The previous prime is 54122899. The next prime is 54122987. The reversal of 54122920 is 2922145.

It can be written as a sum of positive squares in 4 ways, for example, as 43007364 + 11115556 = 6558^2 + 3334^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12022 + ... + 15898.

Almost surely, 254122920 is an apocalyptic number.

It is an amenable number.

54122920 is an abundant number, since it is smaller than the sum of its proper divisors (68034080).

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

54122920 is a wasteful number, since it uses less digits than its factorization.

54122920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237 (or 4233 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 54122920 is about 7356.8281208684. The cubic root of 54122920 is about 378.2628929948.

The spelling of 54122920 in words is "fifty-four million, one hundred twenty-two thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 349 698 1396 1745 2792 3490 3877 6980 7754 13960 15508 19385 31016 38770 77540 155080 1353073 2706146 5412292 6765365 10824584 13530730 27061460 54122920