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55142094 = 2371312907
BaseRepresentation
bin1101001001011…
…0011011001110
310211202111201210
43102112123032
5103104021334
65245515250
71236462060
oct322263316
9124674653
1055142094
1129143087
1216572b26
13b568a77
147475730
154c935e9
hex34966ce

55142094 has 16 divisors (see below), whose sum is σ = 126039168. Its totient is φ = 15754872.

The previous prime is 55142093. The next prime is 55142141. The reversal of 55142094 is 49024155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55142093) 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, 656412 + ... + 656495.

It is an arithmetic number, because the mean of its divisors is an integer number (7877448).

Almost surely, 255142094 is an apocalyptic number.

55142094 is an abundant number, since it is smaller than the sum of its proper divisors (70897074).

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

55142094 is a wasteful number, since it uses less digits than its factorization.

55142094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312919.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 55142094 is about 7425.7722830693. The cubic root of 55142094 is about 380.6224654909.

The spelling of 55142094 in words is "fifty-five million, one hundred forty-two thousand, ninety-four".

Divisors: 1 2 3 6 7 14 21 42 1312907 2625814 3938721 7877442 9190349 18380698 27571047 55142094