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725250801 = 311371015881
BaseRepresentation
bin101011001110100…
…111001011110001
31212112200120001210
4223032213023301
52441131011201
6155544350333
723654346552
oct5316471361
91775616053
10725250801
11342426730
12182a753a9
13b73407b2
146c46c329
1543a0e1d6
hex2b3a72f1

725250801 has 32 divisors (see below), whose sum is σ = 1094334336. Its totient is φ = 423360000.

The previous prime is 725250761. The next prime is 725250803. The reversal of 725250801 is 108052527.

It is not a de Polignac number, because 725250801 - 214 = 725234417 is a prime.

It is a super-2 number, since 2×7252508012 = 1051977448702283202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (725250803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120381 + ... + 126261.

It is an arithmetic number, because the mean of its divisors is an integer number (34197948).

Almost surely, 2725250801 is an apocalyptic number.

It is an amenable number.

725250801 is a deficient number, since it is larger than the sum of its proper divisors (369083535).

725250801 is a wasteful number, since it uses less digits than its factorization.

725250801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6033.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 725250801 is about 26930.4808906191. The cubic root of 725250801 is about 898.4544671927.

The spelling of 725250801 in words is "seven hundred twenty-five million, two hundred fifty thousand, eight hundred one".

Divisors: 1 3 11 33 37 101 111 303 407 1111 1221 3333 3737 5881 11211 17643 41107 64691 123321 194073 217597 593981 652791 1781943 2393567 6533791 7180701 19601373 21977297 65931891 241750267 725250801