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268492625 = 532147941
BaseRepresentation
bin10000000000001…
…101111101010001
3200201012211122022
4100000031331101
51022213231000
642350421225
76440102222
oct2000157521
9621184568
10268492625
11128614535
1275b01815
134381899b
1427931249
1518888585
hex1000df51

268492625 has 8 divisors (see below), whose sum is σ = 335078952. Its totient is φ = 214794000.

The previous prime is 268492607. The next prime is 268492663. The reversal of 268492625 is 526294862.

It can be written as a sum of positive squares in 4 ways, for example, as 450241 + 268042384 = 671^2 + 16372^2 .

It is not a de Polignac number, because 268492625 - 28 = 268492369 is a prime.

It is a super-3 number, since 3×2684926253 (a number of 26 digits) contains 333 as substring.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 1073846 + ... + 1074095.

It is an arithmetic number, because the mean of its divisors is an integer number (41884869).

Almost surely, 2268492625 is an apocalyptic number.

268492625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

268492625 is a deficient number, since it is larger than the sum of its proper divisors (66586327).

268492625 is an equidigital number, since it uses as much as digits as its factorization.

268492625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147956 (or 2147946 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 268492625 is about 16385.7445665432. The cubic root of 268492625 is about 645.1253687359.

The spelling of 268492625 in words is "two hundred sixty-eight million, four hundred ninety-two thousand, six hundred twenty-five".

Divisors: 1 5 25 125 2147941 10739705 53698525 268492625