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125125460 = 22510957397
BaseRepresentation
bin1110111010101…
…00001101010100
322201110000212022
413131110031110
5224013003320
620225512312
73046356155
oct735241524
9281400768
10125125460
11646a2679
1235aa2698
131cbccb45
141289192c
15aeb9325
hex7754354

125125460 has 24 divisors (see below), whose sum is σ = 265178760. Its totient is φ = 49590144.

The previous prime is 125125447. The next prime is 125125463. The reversal of 125125460 is 64521521.

It can be written as a sum of positive squares in 4 ways, for example, as 2226064 + 122899396 = 1492^2 + 11086^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125125463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26519 + ... + 30878.

It is an arithmetic number, because the mean of its divisors is an integer number (11049115).

Almost surely, 2125125460 is an apocalyptic number.

125125460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125125460 is an abundant number, since it is smaller than the sum of its proper divisors (140053300).

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

125125460 is a wasteful number, since it uses less digits than its factorization.

125125460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57515 (or 57513 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 125125460 is about 11185.9492221268. The cubic root of 125125460 is about 500.1672240660.

Adding to 125125460 its reverse (64521521), we get a palindrome (189646981).

The spelling of 125125460 in words is "one hundred twenty-five million, one hundred twenty-five thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 57397 114794 229588 286985 573970 1147940 6256273 12512546 25025092 31281365 62562730 125125460