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125708801 = 157800693
BaseRepresentation
bin1110111111000…
…10101000000001
322202112200001112
413133202220001
5224140140201
620250213105
73054335651
oct737425001
9282480045
10125708801
1164a60979
1236124195
132007550a
14129a4361
15b0820bb
hex77e2a01

125708801 has 4 divisors (see below), whose sum is σ = 126509652. Its totient is φ = 124907952.

The previous prime is 125708743. The next prime is 125708831. The reversal of 125708801 is 108807521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81884401 + 43824400 = 9049^2 + 6620^2 .

It is a cyclic number.

It is not a de Polignac number, because 125708801 - 214 = 125692417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125708831) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 400190 + ... + 400503.

It is an arithmetic number, because the mean of its divisors is an integer number (31627413).

Almost surely, 2125708801 is an apocalyptic number.

It is an amenable number.

125708801 is a deficient number, since it is larger than the sum of its proper divisors (800851).

125708801 is an equidigital number, since it uses as much as digits as its factorization.

125708801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800850.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 125708801 is about 11211.9936229022. The cubic root of 125708801 is about 500.9432872990.

The spelling of 125708801 in words is "one hundred twenty-five million, seven hundred eight thousand, eight hundred one".

Divisors: 1 157 800693 125708801