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125290 = 25111767
BaseRepresentation
bin11110100101101010
320100212101
4132211222
513002130
62404014
71031164
oct364552
9210771
10125290
1186150
126060a
1345049
1433934
15271ca
hex1e96a

125290 has 32 divisors (see below), whose sum is σ = 264384. Its totient is φ = 42240.

The previous prime is 125287. The next prime is 125299. The reversal of 125290 is 92521.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (125299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1837 + ... + 1903.

It is an arithmetic number, because the mean of its divisors is an integer number (8262).

2125290 is an apocalyptic number.

125290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125290 is an abundant number, since it is smaller than the sum of its proper divisors (139094).

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

125290 is a wasteful number, since it uses less digits than its factorization.

125290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102.

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

The square root of 125290 is about 353.9632749312. The cubic root of 125290 is about 50.0386368029.

The spelling of 125290 in words is "one hundred twenty-five thousand, two hundred ninety".

Divisors: 1 2 5 10 11 17 22 34 55 67 85 110 134 170 187 335 374 670 737 935 1139 1474 1870 2278 3685 5695 7370 11390 12529 25058 62645 125290