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252818925 = 3523370919
BaseRepresentation
bin11110001000110…
…11010111101101
3122121201112100220
433010123113231
51004210201200
641030441553
76156632262
oct1704332755
9577645326
10252818925
1111a789667
12708032b9
13404bb7c8
1425811269
15172de4a0
hexf11b5ed

252818925 has 12 divisors (see below), whose sum is σ = 417994080. Its totient is φ = 134836720.

The previous prime is 252818903. The next prime is 252818927. The reversal of 252818925 is 529818252.

It is not a de Polignac number, because 252818925 - 29 = 252818413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252818927) 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 11 ways as a sum of consecutive naturals, for example, 1685385 + ... + 1685534.

It is an arithmetic number, because the mean of its divisors is an integer number (34832840).

Almost surely, 2252818925 is an apocalyptic number.

252818925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252818925 is a deficient number, since it is larger than the sum of its proper divisors (165175155).

252818925 is a wasteful number, since it uses less digits than its factorization.

252818925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370932 (or 3370927 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The square root of 252818925 is about 15900.2806579004. The cubic root of 252818925 is about 632.3194295691.

The spelling of 252818925 in words is "two hundred fifty-two million, eight hundred eighteen thousand, nine hundred twenty-five".

Divisors: 1 3 5 15 25 75 3370919 10112757 16854595 50563785 84272975 252818925