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125383890720 = 25351140958061
BaseRepresentation
bin111010011000101110…
…1100101011100100000
3102222122012220121010110
41310301131211130200
54023241234000340
6133333415531320
712026062325544
oct1646135453440
9388565817113
10125383890720
11491a1a34990
1220372989b40
13ba9273701a
1460d63b7a24
1533dc98c680
hex1d31765720

125383890720 has 192 divisors, whose sum is σ = 431925540480. Its totient is φ = 30321254400.

The previous prime is 125383890719. The next prime is 125383890727. The reversal of 125383890720 is 27098383521.

It is a happy number.

It is a super-2 number, since 2×1253838907202 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 125383890720.

It is not an unprimeable number, because it can be changed into a prime (125383890727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2130490 + ... + 2188550.

It is an arithmetic number, because the mean of its divisors is an integer number (2249612190).

Almost surely, 2125383890720 is an apocalyptic number.

125383890720 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 125383890720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215962770240).

125383890720 is an abundant number, since it is smaller than the sum of its proper divisors (306541649760).

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

125383890720 is a wasteful number, since it uses less digits than its factorization.

125383890720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58499 (or 58491 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 125383890720 in words is "one hundred twenty-five billion, three hundred eighty-three million, eight hundred ninety thousand, seven hundred twenty".