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125151140 = 2256257557
BaseRepresentation
bin1110111010110…
…10011110100100
322201111100002102
413131122132210
5224014314030
620230231232
73046524062
oct735323644
9281440072
10125151140
116470a9a4
1235ab5518
131cc0b73a
141289b032
15aec1c45
hex775a7a4

125151140 has 12 divisors (see below), whose sum is σ = 262817436. Its totient is φ = 50060448.

The previous prime is 125151107. The next prime is 125151149. The reversal of 125151140 is 41151521.

It can be written as a sum of positive squares in 2 ways, for example, as 68690944 + 56460196 = 8288^2 + 7514^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6257557 = 125151140 / (1 + 2 + 5 + 1 + 5 + 1 + 1 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (125151149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3128759 + ... + 3128798.

It is an arithmetic number, because the mean of its divisors is an integer number (21901453).

Almost surely, 2125151140 is an apocalyptic number.

125151140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125151140 is an abundant number, since it is smaller than the sum of its proper divisors (137666296).

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

125151140 is a wasteful number, since it uses less digits than its factorization.

125151140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6257566 (or 6257564 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 125151140 is about 11187.0970318488. The cubic root of 125151140 is about 500.2014388339.

The spelling of 125151140 in words is "one hundred twenty-five million, one hundred fifty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 6257557 12515114 25030228 31287785 62575570 125151140