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125381112 = 23331168523
BaseRepresentation
bin1110111100100…
…10100111111000
322201221000112220
413132102213320
5224044143422
620235204040
73051502413
oct736224770
9281830486
10125381112
116485775a
1235ba6620
131cc8c30c
141291ab7a
15b019e5c
hex77929f8

125381112 has 32 divisors (see below), whose sum is σ = 323566080. Its totient is φ = 40445280.

The previous prime is 125381111. The next prime is 125381177. The reversal of 125381112 is 211183521.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125381111) 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, 83518 + ... + 85005.

It is an arithmetic number, because the mean of its divisors is an integer number (10111440).

Almost surely, 2125381112 is an apocalyptic number.

125381112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125381112 is an abundant number, since it is smaller than the sum of its proper divisors (198184968).

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

125381112 is a wasteful number, since it uses less digits than its factorization.

125381112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168563 (or 168559 counting only the distinct ones).

The product of its digits is 480, while the sum is 24.

The square root of 125381112 is about 11197.3707628175. The cubic root of 125381112 is about 500.5076337748.

The spelling of 125381112 in words is "one hundred twenty-five million, three hundred eighty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 124 186 248 372 744 168523 337046 505569 674092 1011138 1348184 2022276 4044552 5224213 10448426 15672639 20896852 31345278 41793704 62690556 125381112