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125786980 = 22511571759
BaseRepresentation
bin1110111111101…
…01101101100100
322202200122022001
413133311231210
5224200140410
620252015044
73055112614
oct737655544
9282618261
10125786980
1165004690
1236161484
13200a1c87
14129c4a44
15b09a33a
hex77f5b64

125786980 has 24 divisors (see below), whose sum is σ = 288167040. Its totient is φ = 45740640.

The previous prime is 125786971. The next prime is 125786989. The reversal of 125786980 is 89687521.

It is an interprime number because it is at equal distance from previous prime (125786971) and next prime (125786989).

It is a self number, because there is not a number n which added to its sum of digits gives 125786980.

It is not an unprimeable number, because it can be changed into a prime (125786989) 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, 285660 + ... + 286099.

It is an arithmetic number, because the mean of its divisors is an integer number (12006960).

Almost surely, 2125786980 is an apocalyptic number.

125786980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125786980 is an abundant number, since it is smaller than the sum of its proper divisors (162380060).

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

125786980 is a wasteful number, since it uses less digits than its factorization.

125786980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571779 (or 571777 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 125786980 is about 11215.4794815023. The cubic root of 125786980 is about 501.0471122477.

The spelling of 125786980 in words is "one hundred twenty-five million, seven hundred eighty-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 571759 1143518 2287036 2858795 5717590 6289349 11435180 12578698 25157396 31446745 62893490 125786980