Search a number
-
+
725790276 = 2232157128413
BaseRepresentation
bin101011010000101…
…010111001000100
31212120200222002100
4223100222321010
52441300242101
6200004112100
723662054431
oct5320527104
91776628070
10725790276
11342764a82
12183095630
13b749c203
146c56cb88
1543ab8e86
hex2b42ae44

725790276 has 36 divisors (see below), whose sum is σ = 1846336492. Its totient is φ = 240387264.

The previous prime is 725790251. The next prime is 725790281. The reversal of 725790276 is 672097527.

725790276 is a `hidden beast` number, since 7 + 2 + 579 + 0 + 2 + 76 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 350438400 + 375351876 = 18720^2 + 19374^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58555 + ... + 69858.

Almost surely, 2725790276 is an apocalyptic number.

It is an amenable number.

725790276 is an abundant number, since it is smaller than the sum of its proper divisors (1120546216).

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

725790276 is a wasteful number, since it uses less digits than its factorization.

725790276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128580 (or 128575 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 725790276 is about 26940.4950956734. The cubic root of 725790276 is about 898.6771826053.

The spelling of 725790276 in words is "seven hundred twenty-five million, seven hundred ninety thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 9 12 18 36 157 314 471 628 942 1413 1884 2826 5652 128413 256826 385239 513652 770478 1155717 1540956 2311434 4622868 20160841 40321682 60482523 80643364 120965046 181447569 241930092 362895138 725790276