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55142682 = 2371312921
BaseRepresentation
bin1101001001011…
…0100100011010
310211202112112120
43102112210122
5103104031212
65245522110
71236463560
oct322264432
9124675476
1055142682
1129143571
1216573336
13b56910a
147475a30
154c9388c
hex349691a

55142682 has 16 divisors (see below), whose sum is σ = 126040512. Its totient is φ = 15755040.

The previous prime is 55142677. The next prime is 55142687. The reversal of 55142682 is 28624155.

It is an interprime number because it is at equal distance from previous prime (55142677) and next prime (55142687).

It is not an unprimeable number, because it can be changed into a prime (55142687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656419 + ... + 656502.

It is an arithmetic number, because the mean of its divisors is an integer number (7877532).

Almost surely, 255142682 is an apocalyptic number.

55142682 is an abundant number, since it is smaller than the sum of its proper divisors (70897830).

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

55142682 is a wasteful number, since it uses less digits than its factorization.

55142682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312933.

The product of its digits is 19200, while the sum is 33.

The square root of 55142682 is about 7425.8118748053. The cubic root of 55142682 is about 380.6238183909.

The spelling of 55142682 in words is "fifty-five million, one hundred forty-two thousand, six hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 42 1312921 2625842 3938763 7877526 9190447 18380894 27571341 55142682