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53944722 = 23213269857
BaseRepresentation
bin1100110111001…
…0000110010010
310202111200020200
43031302012102
5102302212342
65204120030
71223344146
oct315620622
9122450220
1053944722
11284a5517
1216096016
13b239a70
147243226
154b0894c
hex3372192

53944722 has 48 divisors (see below), whose sum is σ = 126486360. Its totient is φ = 16517376.

The previous prime is 53944711. The next prime is 53944741. The reversal of 53944722 is 22744935.

It can be written as a sum of positive squares in 4 ways, for example, as 36978561 + 16966161 = 6081^2 + 4119^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62518 + ... + 63374.

Almost surely, 253944722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53944722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63243180).

53944722 is an abundant number, since it is smaller than the sum of its proper divisors (72541638).

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

53944722 is a wasteful number, since it uses less digits than its factorization.

53944722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1144 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 53944722 is about 7344.7070738049. The cubic root of 53944722 is about 377.8472970165.

The spelling of 53944722 in words is "fifty-three million, nine hundred forty-four thousand, seven hundred twenty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 269 538 807 857 1614 1714 2421 2571 3497 4842 5142 6994 7713 10491 11141 15426 20982 22282 31473 33423 62946 66846 100269 200538 230533 461066 691599 1383198 2074797 2996929 4149594 5993858 8990787 17981574 26972361 53944722