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253220125 = 5319106619
BaseRepresentation
bin11110001011111…
…01010100011101
3122122110220201011
433011331110131
51004311021000
641043215221
76163223044
oct1705752435
9578426634
10253220125
1111aa33034
1270977511
13405cc2c2
14258b755b
151736d2ba
hexf17d51d

253220125 has 16 divisors (see below), whose sum is σ = 332654400. Its totient is φ = 191912400.

The previous prime is 253220111. The next prime is 253220131. The reversal of 253220125 is 521022352.

It is not a de Polignac number, because 253220125 - 29 = 253219613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253220096 and 253220105.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 50935 + ... + 55684.

It is an arithmetic number, because the mean of its divisors is an integer number (20790900).

Almost surely, 2253220125 is an apocalyptic number.

253220125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253220125 is a deficient number, since it is larger than the sum of its proper divisors (79434275).

253220125 is a wasteful number, since it uses less digits than its factorization.

253220125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106653 (or 106643 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 253220125 is about 15912.8917862216. The cubic root of 253220125 is about 632.6537300716.

Adding to 253220125 its reverse (521022352), we get a palindrome (774242477).

The spelling of 253220125 in words is "two hundred fifty-three million, two hundred twenty thousand, one hundred twenty-five".

Divisors: 1 5 19 25 95 125 475 2375 106619 533095 2025761 2665475 10128805 13327375 50644025 253220125