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125955361 = 717993623
BaseRepresentation
bin1111000000111…
…10110100100001
322210000012021101
413200132310201
5224221032421
620255354401
73056413540
oct740366441
9283005241
10125955361
116510a144
1236222a01
13201307cc
1412a2a157
15b0d0191
hex781ed21

125955361 has 4 divisors (see below), whose sum is σ = 143948992. Its totient is φ = 107961732.

The previous prime is 125955359. The next prime is 125955367. The reversal of 125955361 is 163559521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 163559521 = 320950969.

It is a cyclic number.

It is not a de Polignac number, because 125955361 - 21 = 125955359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125955361.

It is not an unprimeable number, because it can be changed into a prime (125955367) 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, 8996805 + ... + 8996818.

It is an arithmetic number, because the mean of its divisors is an integer number (35987248).

Almost surely, 2125955361 is an apocalyptic number.

It is an amenable number.

125955361 is a deficient number, since it is larger than the sum of its proper divisors (17993631).

125955361 is an equidigital number, since it uses as much as digits as its factorization.

125955361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17993630.

The product of its digits is 40500, while the sum is 37.

The square root of 125955361 is about 11222.9836050847. The cubic root of 125955361 is about 501.2705831685.

It can be divided in two parts, 12595 and 5361, that added together give a square (17956 = 1342).

The spelling of 125955361 in words is "one hundred twenty-five million, nine hundred fifty-five thousand, three hundred sixty-one".

Divisors: 1 7 17993623 125955361