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264896213 = 1371933549
BaseRepresentation
bin11111100100111…
…11111011010101
3200110110010021212
433302133323111
51020303134323
642141351205
76364403111
oct1762377325
9613403255
10264896213
1112658849a
1274868505
1342b59a2a
1427276741
15183c7b78
hexfc9fed5

264896213 has 4 divisors (see below), whose sum is σ = 266829900. Its totient is φ = 262962528.

The previous prime is 264896197. The next prime is 264896231. The reversal of 264896213 is 312698462.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68840209 + 196056004 = 8297^2 + 14002^2 .

It is a cyclic number.

It is not a de Polignac number, because 264896213 - 24 = 264896197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264896293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966638 + ... + 966911.

It is an arithmetic number, because the mean of its divisors is an integer number (66707475).

Almost surely, 2264896213 is an apocalyptic number.

It is an amenable number.

264896213 is a deficient number, since it is larger than the sum of its proper divisors (1933687).

264896213 is a wasteful number, since it uses less digits than its factorization.

264896213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933686.

The product of its digits is 124416, while the sum is 41.

The square root of 264896213 is about 16275.6324915501. The cubic root of 264896213 is about 642.2319637773.

The spelling of 264896213 in words is "two hundred sixty-four million, eight hundred ninety-six thousand, two hundred thirteen".

Divisors: 1 137 1933549 264896213