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268185425 = 5210727417
BaseRepresentation
bin11111111110000…
…10111101010001
3200200122020020112
433333002331101
51022123413200
642340051105
76434352464
oct1777027521
9620566215
10268185425
11128424752
1275993a95
134373bc01
14278912db
1518827535
hexffc2f51

268185425 has 6 divisors (see below), whose sum is σ = 332549958. Its totient is φ = 214548320.

The previous prime is 268185419. The next prime is 268185439. The reversal of 268185425 is 524581862.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4999696 + 263185729 = 2236^2 + 16223^2 .

It is a de Polignac number, because none of the positive numbers 2k-268185425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5363684 + ... + 5363733.

It is an arithmetic number, because the mean of its divisors is an integer number (55424993).

Almost surely, 2268185425 is an apocalyptic number.

268185425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

268185425 is a deficient number, since it is larger than the sum of its proper divisors (64364533).

268185425 is a wasteful number, since it uses less digits than its factorization.

268185425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10727427 (or 10727422 counting only the distinct ones).

The product of its digits is 153600, while the sum is 41.

The square root of 268185425 is about 16376.3678817985. The cubic root of 268185425 is about 644.8792314402.

The spelling of 268185425 in words is "two hundred sixty-eight million, one hundred eighty-five thousand, four hundred twenty-five".

Divisors: 1 5 25 10727417 53637085 268185425