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275400325 = 5227739769
BaseRepresentation
bin10000011010100…
…100011010000101
3201012012210020001
4100122210122011
51031000302300
643154441301
76552602254
oct2032443205
9635183201
10275400325
11131502382
1278293231
1345096b95
142880c79b
15192a016a
hex106a4685

275400325 has 12 divisors (see below), whose sum is σ = 342737860. Its totient is φ = 219519360.

The previous prime is 275400319. The next prime is 275400343. The reversal of 275400325 is 523004572.

It can be written as a sum of positive squares in 6 ways, for example, as 68989636 + 206410689 = 8306^2 + 14367^2 .

It is not a de Polignac number, because 275400325 - 219 = 274876037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 275400293 and 275400302.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 12960 + ... + 26809.

Almost surely, 2275400325 is an apocalyptic number.

275400325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

275400325 is a deficient number, since it is larger than the sum of its proper divisors (67337535).

275400325 is a wasteful number, since it uses less digits than its factorization.

275400325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40056 (or 40051 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 275400325 is about 16595.1898151241. The cubic root of 275400325 is about 650.6111215039.

Adding to 275400325 its reverse (523004572), we get a palindrome (798404897).

The spelling of 275400325 in words is "two hundred seventy-five million, four hundred thousand, three hundred twenty-five".

Divisors: 1 5 25 277 1385 6925 39769 198845 994225 11016013 55080065 275400325