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725704089 = 311101217733
BaseRepresentation
bin101011010000010…
…101110110011001
31212120112120212020
4223100111312121
52441240012324
6200002205053
723661245235
oct5320256631
91776476766
10725704089
11342706250
12183053789
13b746bc06
146c5495c5
1543a9d679
hex2b415d99

725704089 has 16 divisors (see below), whose sum is σ = 1066025664. Its totient is φ = 435464000.

The previous prime is 725704087. The next prime is 725704097. The reversal of 725704089 is 980407527.

725704089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 725704089 - 21 = 725704087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725704089.

It is not an unprimeable number, because it can be changed into a prime (725704087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105534 + ... + 112199.

It is an arithmetic number, because the mean of its divisors is an integer number (66626604).

Almost surely, 2725704089 is an apocalyptic number.

It is an amenable number.

725704089 is a deficient number, since it is larger than the sum of its proper divisors (340321575).

725704089 is a wasteful number, since it uses less digits than its factorization.

725704089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217848.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 725704089 is about 26938.8954673350. The cubic root of 725704089 is about 898.6416088044.

The spelling of 725704089 in words is "seven hundred twenty-five million, seven hundred four thousand, eighty-nine".

Divisors: 1 3 11 33 101 303 1111 3333 217733 653199 2395063 7185189 21991033 65973099 241901363 725704089