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264893881 = 7172225999
BaseRepresentation
bin11111100100111…
…11010110111001
3200110110000002111
433302133112321
51020303101011
642141332321
76364363240
oct1762372671
9613400074
10264893881
1112658676a
12748670a1
1342b58955
1427275957
15183c7121
hexfc9f5b9

264893881 has 8 divisors (see below), whose sum is σ = 320544000. Its totient is φ = 213695808.

The previous prime is 264893869. The next prime is 264893899. The reversal of 264893881 is 188398462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264893881 - 211 = 264891833 is a prime.

It is a super-2 number, since 2×2648938812 = 140337536382484322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (264893821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112881 + ... + 1113118.

It is an arithmetic number, because the mean of its divisors is an integer number (40068000).

Almost surely, 2264893881 is an apocalyptic number.

It is an amenable number.

264893881 is a deficient number, since it is larger than the sum of its proper divisors (55650119).

264893881 is a wasteful number, since it uses less digits than its factorization.

264893881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226023.

The product of its digits is 663552, while the sum is 49.

The square root of 264893881 is about 16275.5608505514. The cubic root of 264893881 is about 642.2300791532.

The spelling of 264893881 in words is "two hundred sixty-four million, eight hundred ninety-three thousand, eight hundred eighty-one".

Divisors: 1 7 17 119 2225999 15581993 37841983 264893881