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55142514 = 23272915091
BaseRepresentation
bin1101001001011…
…0100001110010
310211202112022100
43102112201302
5103104030024
65245521230
71236463230
oct322264162
9124675270
1055142514
1129143429
1216573216
13b56900b
147475950
154c937c9
hex3496872

55142514 has 48 divisors (see below), whose sum is σ = 141261120. Its totient is φ = 15210720.

The previous prime is 55142497. The next prime is 55142519. The reversal of 55142514 is 41524155.

55142514 is a `hidden beast` number, since 5 + 5 + 142 + 514 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55142519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3892 + ... + 11199.

It is an arithmetic number, because the mean of its divisors is an integer number (2942940).

Almost surely, 255142514 is an apocalyptic number.

55142514 is an abundant number, since it is smaller than the sum of its proper divisors (86118606).

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

55142514 is a wasteful number, since it uses less digits than its factorization.

55142514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15135 (or 15132 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 55142514 is about 7425.8005629023. The cubic root of 55142514 is about 380.6234318490.

Adding to 55142514 its reverse (41524155), we get a palindrome (96666669).

The spelling of 55142514 in words is "fifty-five million, one hundred forty-two thousand, five hundred fourteen".

Divisors: 1 2 3 6 7 9 14 18 21 29 42 58 63 87 126 174 203 261 406 522 609 1218 1827 3654 15091 30182 45273 90546 105637 135819 211274 271638 316911 437639 633822 875278 950733 1312917 1901466 2625834 3063473 3938751 6126946 7877502 9190419 18380838 27571257 55142514