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252919925 = 52194711329
BaseRepresentation
bin11110001001101…
…00000001110101
3122121220122220122
433010310001311
51004221414200
641032541325
76160532606
oct1704640165
9577818818
10252919925
1111a848535
1270851845
134052577b
1425839dad
151730e385
hexf134075

252919925 has 24 divisors (see below), whose sum is σ = 337180800. Its totient is φ = 187591680.

The previous prime is 252919921. The next prime is 252919967. The reversal of 252919925 is 529919252.

It is not a de Polignac number, because 252919925 - 22 = 252919921 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252919921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16661 + ... + 27989.

It is an arithmetic number, because the mean of its divisors is an integer number (14049200).

Almost surely, 2252919925 is an apocalyptic number.

252919925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252919925 is a deficient number, since it is larger than the sum of its proper divisors (84260875).

252919925 is a wasteful number, since it uses less digits than its factorization.

252919925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11405 (or 11400 counting only the distinct ones).

The product of its digits is 145800, while the sum is 44.

The square root of 252919925 is about 15903.4563853271. The cubic root of 252919925 is about 632.4036212618.

The spelling of 252919925 in words is "two hundred fifty-two million, nine hundred nineteen thousand, nine hundred twenty-five".

Divisors: 1 5 19 25 47 95 235 475 893 1175 4465 11329 22325 56645 215251 283225 532463 1076255 2662315 5381275 10116797 13311575 50583985 252919925