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125130992 = 24710310847
BaseRepresentation
bin1110111010101…
…01100011110000
322201110022110012
413131111203300
5224013142432
620225554052
73046411250
oct735254360
9281408405
10125130992
11646a6848
1235aa5928
131cc0250c
1412893960
15aebacb2
hex77558f0

125130992 has 40 divisors (see below), whose sum is σ = 279791616. Its totient is φ = 53102016.

The previous prime is 125130991. The next prime is 125131037. The reversal of 125130992 is 299031521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125130991) 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, 6113 + ... + 16959.

Almost surely, 2125130992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125130992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139895808).

125130992 is an abundant number, since it is smaller than the sum of its proper divisors (154660624).

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

125130992 is a wasteful number, since it uses less digits than its factorization.

125130992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10965 (or 10959 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 125130992 is about 11186.1964938937. The cubic root of 125130992 is about 500.1745950261.

The spelling of 125130992 in words is "one hundred twenty-five million, one hundred thirty thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 28 56 103 112 206 412 721 824 1442 1648 2884 5768 10847 11536 21694 43388 75929 86776 151858 173552 303716 607432 1117241 1214864 2234482 4468964 7820687 8937928 15641374 17875856 31282748 62565496 125130992