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252179125 = 5311216673
BaseRepresentation
bin11110000011111…
…11001010110101
3122120112000201121
433001333022311
51004024213000
641005023541
76151326052
oct1701771265
9576460647
10252179125
1111a391a00
1270554bb1
1340326523
14256c6029
1517214b1a
hexf07f2b5

252179125 has 24 divisors (see below), whose sum is σ = 345952152. Its totient is φ = 183392000.

The previous prime is 252179117. The next prime is 252179129. The reversal of 252179125 is 521971252.

It can be written as a sum of positive squares in 4 ways, for example, as 576081 + 251603044 = 759^2 + 15862^2 .

It is not a de Polignac number, because 252179125 - 23 = 252179117 is a prime.

It is a super-2 number, since 2×2521791252 = 127188622171531250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252179129) 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 23 ways as a sum of consecutive naturals, for example, 6789 + ... + 23461.

It is an arithmetic number, because the mean of its divisors is an integer number (14414673).

Almost surely, 2252179125 is an apocalyptic number.

252179125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252179125 is a deficient number, since it is larger than the sum of its proper divisors (93773027).

252179125 is a wasteful number, since it uses less digits than its factorization.

252179125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16710 (or 16689 counting only the distinct ones).

The product of its digits is 12600, while the sum is 34.

The square root of 252179125 is about 15880.1487713434. The cubic root of 252179125 is about 631.7855827740.

The spelling of 252179125 in words is "two hundred fifty-two million, one hundred seventy-nine thousand, one hundred twenty-five".

Divisors: 1 5 11 25 55 121 125 275 605 1375 3025 15125 16673 83365 183403 416825 917015 2017433 2084125 4585075 10087165 22925375 50435825 252179125