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125020280880 = 2432511107151977
BaseRepresentation
bin111010001101111001…
…0100001100000110000
3102221200212201022012100
41310123302201200300
54022020142442010
6133233350300400
712014055565545
oct1643362414060
9387625638170
10125020280880
1149025764490
1220291057700
13ba352c7181
14609dda6bcc
1533baab62c0
hex1d1bca1830

125020280880 has 480 divisors, whose sum is σ = 465847469568. Its totient is φ = 29795328000.

The previous prime is 125020280867. The next prime is 125020280893. The reversal of 125020280880 is 88082020521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125020280867) and next prime (125020280893).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 127962952 + ... + 127963928.

Almost surely, 2125020280880 is an apocalyptic number.

125020280880 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 125020280880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232923734784).

125020280880 is an abundant number, since it is smaller than the sum of its proper divisors (340827188688).

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

125020280880 is a wasteful number, since it uses less digits than its factorization.

125020280880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The spelling of 125020280880 in words is "one hundred twenty-five billion, twenty million, two hundred eighty thousand, eight hundred eighty".