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55799415 = 3357137431
BaseRepresentation
bin1101010011011…
…0111001110111
310212222220102000
43110312321313
5103241040130
65311550343
71245200340
oct324667167
9125886360
1055799415
1129551a21
121682b3b3
13b739009
1475a70c7
154d73260
hex3536e77

55799415 has 64 divisors (see below), whose sum is σ = 114462720. Its totient is φ = 25263360.

The previous prime is 55799383. The next prime is 55799467. The reversal of 55799415 is 51499755.

55799415 is a `hidden beast` number, since 557 + 9 + 94 + 1 + 5 = 666.

It is not a de Polignac number, because 55799415 - 25 = 55799383 is a prime.

It is a super-2 number, since 2×557994152 = 6227149428684450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 129250 + ... + 129680.

It is an arithmetic number, because the mean of its divisors is an integer number (1788480).

Almost surely, 255799415 is an apocalyptic number.

55799415 is an abundant number, since it is smaller than the sum of its proper divisors (58663305).

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

55799415 is a wasteful number, since it uses less digits than its factorization.

55799415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 583 counting only the distinct ones).

The product of its digits is 283500, while the sum is 45.

The square root of 55799415 is about 7469.9006017483. The cubic root of 55799415 is about 382.1288980506.

It can be divided in two parts, 557994 and 15, that added together give a square (558009 = 7472).

The spelling of 55799415 in words is "fifty-five million, seven hundred ninety-nine thousand, four hundred fifteen".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 137 189 315 411 431 685 945 959 1233 1293 2055 2155 2877 3017 3699 3879 4795 6165 6465 8631 9051 11637 14385 15085 18495 19395 25893 27153 43155 45255 58185 59047 81459 129465 135765 177141 295235 407295 413329 531423 885705 1239987 1594269 2066645 2657115 3719961 6199935 7971345 11159883 18599805 55799415