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268192907 = 379707633
BaseRepresentation
bin11111111110001…
…00110010001011
3200200122121111122
433333010302023
51022124133112
642340145455
76434413343
oct1777046213
9620577448
10268192907
1112842a334
127599828b
1343742438
1427893d23
1518829872
hexffc4c8b

268192907 has 4 divisors (see below), whose sum is σ = 268900920. Its totient is φ = 267484896.

The previous prime is 268192877. The next prime is 268192919. The reversal of 268192907 is 709291862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 268192907 - 26 = 268192843 is a prime.

It is a super-2 number, since 2×2681929072 = 143854870730221298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268192807) 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 3 ways as a sum of consecutive naturals, for example, 353438 + ... + 354195.

It is an arithmetic number, because the mean of its divisors is an integer number (67225230).

Almost surely, 2268192907 is an apocalyptic number.

268192907 is a deficient number, since it is larger than the sum of its proper divisors (708013).

268192907 is an equidigital number, since it uses as much as digits as its factorization.

268192907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708012.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 268192907 is about 16376.5963191379. The cubic root of 268192907 is about 644.8852284620.

The spelling of 268192907 in words is "two hundred sixty-eight million, one hundred ninety-two thousand, nine hundred seven".

Divisors: 1 379 707633 268192907