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725770764 = 223253380383
BaseRepresentation
bin101011010000100…
…110001000001100
31212120122222022200
4223100212020030
52441244131024
6200003441500
723661643515
oct5320461014
91776588280
10725770764
11342751354
12183086290
13b7493374
146c565a0c
1543ab32c9
hex2b42620c

725770764 has 36 divisors (see below), whose sum is σ = 1869206976. Its totient is φ = 237358368.

The previous prime is 725770753. The next prime is 725770769. The reversal of 725770764 is 467077527.

725770764 is a `hidden beast` number, since 7 + 2 + 577 + 0 + 76 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (725770769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188284 + ... + 192099.

It is an arithmetic number, because the mean of its divisors is an integer number (51922416).

Almost surely, 2725770764 is an apocalyptic number.

It is an amenable number.

725770764 is an abundant number, since it is smaller than the sum of its proper divisors (1143436212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725770764 is a wasteful number, since it uses less digits than its factorization.

725770764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380446 (or 380441 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 45.

The square root of 725770764 is about 26940.1329618100. The cubic root of 725770764 is about 898.6691292475.

The spelling of 725770764 in words is "seven hundred twenty-five million, seven hundred seventy thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 36 53 106 159 212 318 477 636 954 1908 380383 760766 1141149 1521532 2282298 3423447 4564596 6846894 13693788 20160299 40320598 60480897 80641196 120961794 181442691 241923588 362885382 725770764