Search a number
-
+
125325820039680 = 29325131489128099
BaseRepresentation
bin11100011111101110110000…
…111111000001001000000000
3121102202000211212210002212200
4130133232300333001020000
5112411314234412232210
61122313515323353200
735253330436452411
oct3437566077011000
9542660755702780
10125325820039680
1136a294221a1a37
1212080b97682800
1354c1235704410
1422d3b32ba5808
15e7502b1dd0c0
hex71fbb0fc1200

125325820039680 has 480 divisors, whose sum is σ = 467474170363200. Its totient is φ = 30846263132160.

The previous prime is 125325820039657. The next prime is 125325820039729. The reversal of 125325820039680 is 86930028523521.

It is a happy number.

125325820039680 is a `hidden beast` number, since 1 + 2 + 5 + 325 + 8 + 200 + 39 + 6 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-2 number, since 2×1253258200396802 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4460138271 + ... + 4460166369.

It is an arithmetic number, because the mean of its divisors is an integer number (973904521590).

Almost surely, 2125325820039680 is an apocalyptic number.

125325820039680 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 125325820039680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233737085181600).

125325820039680 is an abundant number, since it is smaller than the sum of its proper divisors (342148350323520).

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

125325820039680 is a wasteful number, since it uses less digits than its factorization.

125325820039680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43032 (or 43013 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 125325820039680 in words is "one hundred twenty-five trillion, three hundred twenty-five billion, eight hundred twenty million, thirty-nine thousand, six hundred eighty".