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264048389 = 1124004399
BaseRepresentation
bin11111011110100…
…00111100000101
3200101212001021222
433233100330011
51020044022024
642111250125
76354242243
oct1757207405
9611761258
10264048389
11126059510
1274519945
1342920b67
14270d5793
15182ab85e
hexfbd0f05

264048389 has 4 divisors (see below), whose sum is σ = 288052800. Its totient is φ = 240043980.

The previous prime is 264048371. The next prime is 264048419. The reversal of 264048389 is 983840462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 264048389 - 28 = 264048133 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 (264048319) 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, 12002189 + ... + 12002210.

It is an arithmetic number, because the mean of its divisors is an integer number (72013200).

Almost surely, 2264048389 is an apocalyptic number.

It is an amenable number.

264048389 is a deficient number, since it is larger than the sum of its proper divisors (24004411).

264048389 is a wasteful number, since it uses less digits than its factorization.

264048389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24004410.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 264048389 is about 16249.5658095840. The cubic root of 264048389 is about 641.5460578923.

The spelling of 264048389 in words is "two hundred sixty-four million, forty-eight thousand, three hundred eighty-nine".

Divisors: 1 11 24004399 264048389