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55105355 = 5233491373
BaseRepresentation
bin1101001000110…
…1011101001011
310211200122100002
43102031131023
5103101332410
65245033215
71236250004
oct322153513
9124618302
1055105355
1129118518
121655580b
13b555126
1474661ab
154c877a5
hex348d74b

55105355 has 16 divisors (see below), whose sum is σ = 69249600. Its totient is φ = 42016128.

The previous prime is 55105331. The next prime is 55105367. The reversal of 55105355 is 55350155.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55105355 is a prime.

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, 39449 + ... + 40821.

It is an arithmetic number, because the mean of its divisors is an integer number (4328100).

Almost surely, 255105355 is an apocalyptic number.

55105355 is a deficient number, since it is larger than the sum of its proper divisors (14144245).

55105355 is a wasteful number, since it uses less digits than its factorization.

55105355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750.

The product of its (nonzero) digits is 9375, while the sum is 29.

The square root of 55105355 is about 7423.2981214552. The cubic root of 55105355 is about 380.5379154706.

The spelling of 55105355 in words is "fifty-five million, one hundred five thousand, three hundred fifty-five".

Divisors: 1 5 23 115 349 1373 1745 6865 8027 31579 40135 157895 479177 2395885 11021071 55105355