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55150056 = 23321358921
BaseRepresentation
bin1101001001100…
…0010111101000
310211202220122200
43102120113220
5103104300211
65250020200
71236524223
oct322302750
9124686580
1055150056
1129149065
1216577660
13b56c590
1474785ba
154c95b56
hex34985e8

55150056 has 48 divisors (see below), whose sum is σ = 160857060. Its totient is φ = 16968960.

The previous prime is 55150033. The next prime is 55150061. The reversal of 55150056 is 65005155.

It can be written as a sum of positive squares in 2 ways, for example, as 49702500 + 5447556 = 7050^2 + 2334^2 .

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, 28525 + ... + 30396.

Almost surely, 255150056 is an apocalyptic number.

It is an amenable number.

55150056 is an abundant number, since it is smaller than the sum of its proper divisors (105707004).

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

55150056 is a wasteful number, since it uses less digits than its factorization.

55150056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58946 (or 58939 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 55150056 is about 7426.3083695737. The cubic root of 55150056 is about 380.6407840446.

The spelling of 55150056 in words is "fifty-five million, one hundred fifty thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 58921 117842 176763 235684 353526 471368 530289 707052 765973 1060578 1414104 1531946 2121156 2297919 3063892 4242312 4595838 6127784 6893757 9191676 13787514 18383352 27575028 55150056