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252102417 = 3799712041
BaseRepresentation
bin11110000011011…
…00011100010001
3122120101010111120
433001230130101
51004014234132
641003232453
76150556320
oct1701543421
9576333446
10252102417
1111a33a306
1270518729
13402ca638
14256a60b7
15171ec02c
hexf06c711

252102417 has 16 divisors (see below), whose sum is σ = 384573312. Its totient is φ = 143902080.

The previous prime is 252102377. The next prime is 252102419. The reversal of 252102417 is 714201252.

It is not a de Polignac number, because 252102417 - 26 = 252102353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252102419) 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 15 ways as a sum of consecutive naturals, for example, 14917 + ... + 26957.

It is an arithmetic number, because the mean of its divisors is an integer number (24035832).

Almost surely, 2252102417 is an apocalyptic number.

It is an amenable number.

252102417 is a deficient number, since it is larger than the sum of its proper divisors (132470895).

252102417 is a wasteful number, since it uses less digits than its factorization.

252102417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13048.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 252102417 is about 15877.7333709821. The cubic root of 252102417 is about 631.7215173031.

Adding to 252102417 its reverse (714201252), we get a palindrome (966303669).

The spelling of 252102417 in words is "two hundred fifty-two million, one hundred two thousand, four hundred seventeen".

Divisors: 1 3 7 21 997 2991 6979 12041 20937 36123 84287 252861 12004877 36014631 84034139 252102417