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52168765 = 5115691667
BaseRepresentation
bin1100011100000…
…0100000111101
310122011110002111
43013000200331
5101323400030
65102054021
71202266345
oct307004075
9118143074
1052168765
11274a2190
121557a311
13aa675bc
146cddd25
1548a762a
hex31c083d

52168765 has 16 divisors (see below), whose sum is σ = 68454720. Its totient is φ = 37851520.

The previous prime is 52168747. The next prime is 52168777. The reversal of 52168765 is 56786125.

It is not a de Polignac number, because 52168765 - 29 = 52168253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30462 + ... + 32128.

It is an arithmetic number, because the mean of its divisors is an integer number (4278420).

Almost surely, 252168765 is an apocalyptic number.

52168765 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52168765 is a deficient number, since it is larger than the sum of its proper divisors (16285955).

52168765 is a wasteful number, since it uses less digits than its factorization.

52168765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252.

The product of its digits is 100800, while the sum is 40.

The square root of 52168765 is about 7222.7948191818. The cubic root of 52168765 is about 373.6544727394.

The spelling of 52168765 in words is "fifty-two million, one hundred sixty-eight thousand, seven hundred sixty-five".

Divisors: 1 5 11 55 569 1667 2845 6259 8335 18337 31295 91685 948523 4742615 10433753 52168765