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55988079 = 3719140321
BaseRepresentation
bin1101010110010…
…0111101101111
310220100111012120
43111210331233
5103313104304
65320004023
71246614360
oct325447557
9126314176
1055988079
1129670744
1216900613
13b7a3b54
147615b67
154dae0d9
hex3564f6f

55988079 has 16 divisors (see below), whose sum is σ = 89806080. Its totient is φ = 30309120.

The previous prime is 55988069. The next prime is 55988113. The reversal of 55988079 is 97088955.

It is not a de Polignac number, because 55988079 - 24 = 55988063 is a prime.

It is a super-2 number, since 2×559880792 = 6269329980220482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55988029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69762 + ... + 70559.

It is an arithmetic number, because the mean of its divisors is an integer number (5612880).

Almost surely, 255988079 is an apocalyptic number.

55988079 is a deficient number, since it is larger than the sum of its proper divisors (33818001).

55988079 is a wasteful number, since it uses less digits than its factorization.

55988079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140350.

The product of its (nonzero) digits is 907200, while the sum is 51.

The square root of 55988079 is about 7482.5182258381. The cubic root of 55988079 is about 382.5590869462.

It can be divided in two parts, 55 and 988079, that multiplied together give a palindrome (54344345).

The spelling of 55988079 in words is "fifty-five million, nine hundred eighty-eight thousand, seventy-nine".

Divisors: 1 3 7 19 21 57 133 399 140321 420963 982247 2666099 2946741 7998297 18662693 55988079