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55101210605 = 572954286907
BaseRepresentation
bin110011010100010010…
…011011111111101101
312021020002122112000222
4303110102123333231
51400321402214410
641151350101125
73660313363610
oct632422337755
9167202575028
1055101210605
1121406219091
12a81934a7a5
13527187713c
14294a01a177
15167763e955
hexcd449bfed

55101210605 has 16 divisors (see below), whose sum is σ = 78173147520. Its totient is φ = 36480800832.

The previous prime is 55101210587. The next prime is 55101210613. The reversal of 55101210605 is 50601210155.

It is not a de Polignac number, because 55101210605 - 222 = 55097016301 is a prime.

It is a super-2 number, since 2×551012106052 (a number of 22 digits) contains 22 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, 27142439 + ... + 27144468.

It is an arithmetic number, because the mean of its divisors is an integer number (4885821720).

Almost surely, 255101210605 is an apocalyptic number.

It is an amenable number.

55101210605 is a deficient number, since it is larger than the sum of its proper divisors (23071936915).

55101210605 is a wasteful number, since it uses less digits than its factorization.

55101210605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54286948.

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 55101210605 in words is "fifty-five billion, one hundred one million, two hundred ten thousand, six hundred five".

Divisors: 1 5 7 29 35 145 203 1015 54286907 271434535 380008349 1574320303 1900041745 7871601515 11020242121 55101210605