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55111070 = 2574191879
BaseRepresentation
bin1101001000111…
…0110110011110
310211200221011202
43102032312132
5103102023240
65245115502
71236302450
oct322166636
9124627152
1055111070
1129121843
1216558b92
13b557901
1474682d0
154c89315
hex348ed9e

55111070 has 32 divisors (see below), whose sum is σ = 113702400. Its totient is φ = 18840096.

The previous prime is 55111033. The next prime is 55111073. The reversal of 55111070 is 7011155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55111073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28391 + ... + 30269.

It is an arithmetic number, because the mean of its divisors is an integer number (3553200).

Almost surely, 255111070 is an apocalyptic number.

55111070 is an abundant number, since it is smaller than the sum of its proper divisors (58591330).

55111070 is a wasteful number, since it uses less digits than its factorization.

55111070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312.

The product of its (nonzero) digits is 175, while the sum is 20.

The square root of 55111070 is about 7423.6830481911. The cubic root of 55111070 is about 380.5510702660.

The spelling of 55111070 in words is "fifty-five million, one hundred eleven thousand, seventy".

Divisors: 1 2 5 7 10 14 35 70 419 838 1879 2095 2933 3758 4190 5866 9395 13153 14665 18790 26306 29330 65765 131530 787301 1574602 3936505 5511107 7873010 11022214 27555535 55111070