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55154245 = 519797349
BaseRepresentation
bin1101001001100…
…1011001000101
310211210010101211
43102121121011
5103104413440
65250051421
71236542356
oct322313105
9124703354
1055154245
1129151223
1216579b71
13b571463
147479d2d
154c96eea
hex3499645

55154245 has 16 divisors (see below), whose sum is σ = 70560000. Its totient is φ = 41266368.

The previous prime is 55154237. The next prime is 55154261. The reversal of 55154245 is 54245155.

It is a cyclic number.

It is not a de Polignac number, because 55154245 - 23 = 55154237 is a prime.

It is a super-3 number, since 3×551542453 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3831 + ... + 11179.

It is an arithmetic number, because the mean of its divisors is an integer number (4410000).

Almost surely, 255154245 is an apocalyptic number.

It is an amenable number.

55154245 is a deficient number, since it is larger than the sum of its proper divisors (15405755).

55154245 is a wasteful number, since it uses less digits than its factorization.

55154245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7452.

The product of its digits is 20000, while the sum is 31.

The square root of 55154245 is about 7426.5904020620. The cubic root of 55154245 is about 380.6504211691.

The spelling of 55154245 in words is "fifty-five million, one hundred fifty-four thousand, two hundred forty-five".

Divisors: 1 5 19 79 95 395 1501 7349 7505 36745 139631 580571 698155 2902855 11030849 55154245