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52015975 = 5211189149
BaseRepresentation
bin1100011001101…
…1001101100111
310121212200111121
43012123031213
5101304002400
65054514411
71201062034
oct306331547
9117780447
1052015975
11273a8410
1215505a07
13aa12bab
146ca038b
15487721a
hex319b367

52015975 has 12 divisors (see below), whose sum is σ = 70363800. Its totient is φ = 37829600.

The previous prime is 52015967. The next prime is 52016033. The reversal of 52015975 is 57951025.

It is not a de Polignac number, because 52015975 - 23 = 52015967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52015975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94300 + ... + 94849.

It is an arithmetic number, because the mean of its divisors is an integer number (5863650).

Almost surely, 252015975 is an apocalyptic number.

52015975 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

52015975 is a deficient number, since it is larger than the sum of its proper divisors (18347825).

52015975 is a wasteful number, since it uses less digits than its factorization.

52015975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189170 (or 189165 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 52015975 is about 7212.2101328234. The cubic root of 52015975 is about 373.2893341181.

The spelling of 52015975 in words is "fifty-two million, fifteen thousand, nine hundred seventy-five".

Divisors: 1 5 11 25 55 275 189149 945745 2080639 4728725 10403195 52015975