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125920 = 255787
BaseRepresentation
bin11110101111100000
320101201201
4132233200
513012140
62410544
71033054
oct365740
9211651
10125920
1186673
1260a54
1345412
1433c64
152749a
hex1ebe0

125920 has 24 divisors (see below), whose sum is σ = 297864. Its totient is φ = 50304.

The previous prime is 125899. The next prime is 125921. The reversal of 125920 is 29521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125921) by changing a digit.

125920 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234 + ... + 553.

It is an arithmetic number, because the mean of its divisors is an integer number (12411).

2125920 is an apocalyptic number.

125920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125920 is an abundant number, since it is smaller than the sum of its proper divisors (171944).

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

125920 is an equidigital number, since it uses as much as digits as its factorization.

125920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 125920 is about 354.8520818595. The cubic root of 125920 is about 50.1223669490.

It can be divided in two parts, 1 and 25920, that added together give a square (25921 = 1612).

The spelling of 125920 in words is "one hundred twenty-five thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 787 1574 3148 3935 6296 7870 12592 15740 25184 31480 62960 125920