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125457380 = 22519378923
BaseRepresentation
bin1110111101001…
…01001111100100
322202001220011122
413132211033210
5224104114010
620240553112
73052240646
oct736451744
9282056148
10125457380
11648a9a94
1236022798
131ccb7c49
141293a896
15b032855
hex77a53e4

125457380 has 48 divisors (see below), whose sum is σ = 284854080. Its totient is φ = 46251648.

The previous prime is 125457329. The next prime is 125457389. The reversal of 125457380 is 83754521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 125457380.

It is not an unprimeable number, because it can be changed into a prime (125457389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9599 + ... + 18521.

It is an arithmetic number, because the mean of its divisors is an integer number (5934460).

Almost surely, 2125457380 is an apocalyptic number.

125457380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125457380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142427040).

125457380 is an abundant number, since it is smaller than the sum of its proper divisors (159396700).

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

125457380 is a wasteful number, since it uses less digits than its factorization.

125457380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8988 (or 8986 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 125457380 is about 11200.7758659836. The cubic root of 125457380 is about 500.6090976987.

The spelling of 125457380 in words is "one hundred twenty-five million, four hundred fifty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 19 20 37 38 74 76 95 148 185 190 370 380 703 740 1406 2812 3515 7030 8923 14060 17846 35692 44615 89230 169537 178460 330151 339074 660302 678148 847685 1320604 1650755 1695370 3301510 3390740 6272869 6603020 12545738 25091476 31364345 62728690 125457380