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125375375380 = 22517333617293
BaseRepresentation
bin111010011000011110…
…1000110100000010100
3102222121121212222021111
41310300331012200110
54023232044003010
6133332513224404
712025630051513
oct1646075064024
9388547788244
10125375375380
1149198149212
122036bb62104
13ba90a45168
1460d51dc67a
1533dbd5958a
hex1d30f46814

125375375380 has 24 divisors (see below), whose sum is σ = 263440287432. Its totient is φ = 50121197952.

The previous prime is 125375375327. The next prime is 125375375381. The reversal of 125375375380 is 83573573521.

It can be written as a sum of positive squares in 4 ways, for example, as 4145296 + 125371230084 = 2036^2 + 354078^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125375375381) 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, 1773987 + ... + 1843306.

It is an arithmetic number, because the mean of its divisors is an integer number (10976678643).

Almost surely, 2125375375380 is an apocalyptic number.

125375375380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125375375380 is an abundant number, since it is smaller than the sum of its proper divisors (138064912052).

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

125375375380 is a wasteful number, since it uses less digits than its factorization.

125375375380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619035 (or 3619033 counting only the distinct ones).

The product of its (nonzero) digits is 2646000, while the sum is 49.

The spelling of 125375375380 in words is "one hundred twenty-five billion, three hundred seventy-five million, three hundred seventy-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 1733 3466 6932 8665 17330 34660 3617293 7234586 14469172 18086465 36172930 72345860 6268768769 12537537538 25075075076 31343843845 62687687690 125375375380