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235215125 = 5373149173
BaseRepresentation
bin11100000010100…
…01100100010101
3121101121011111022
432001101210111
5440203341000
635201250525
75554203245
oct1601214425
9541534438
10235215125
11110855672
1266933a45
1339966c62
142334bb25
15159b3585
hexe051915

235215125 has 32 divisors (see below), whose sum is σ = 301298400. Its totient is φ = 183283200.

The previous prime is 235215121. The next prime is 235215137. The reversal of 235215125 is 521512532.

It can be written as a sum of positive squares in 16 ways, for example, as 153908836 + 81306289 = 12406^2 + 9017^2 .

It is not a de Polignac number, because 235215125 - 22 = 235215121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 235215094 and 235215103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235215121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1359539 + ... + 1359711.

It is an arithmetic number, because the mean of its divisors is an integer number (9415575).

Almost surely, 2235215125 is an apocalyptic number.

235215125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

235215125 is a deficient number, since it is larger than the sum of its proper divisors (66083275).

235215125 is a wasteful number, since it uses less digits than its factorization.

235215125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 400 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 235215125 is about 15336.7247155317. The cubic root of 235215125 is about 617.2888250564.

Adding to 235215125 its reverse (521512532), we get a palindrome (756727657).

The spelling of 235215125 in words is "two hundred thirty-five million, two hundred fifteen thousand, one hundred twenty-five".

Divisors: 1 5 25 73 125 149 173 365 745 865 1825 3725 4325 9125 10877 12629 18625 21625 25777 54385 63145 128885 271925 315725 644425 1359625 1578625 1881721 3222125 9408605 47043025 235215125