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125197906303920 = 243517192142759567
BaseRepresentation
bin11100011101110111101000…
…101110110101101110110000
3121102021210200100112001202210
4130131313220232311232300
5112402220303003211140
61122135042452212120
735241151554603162
oct3435675056655660
9542253610461683
10125197906303920
113698a15222a02a
121206023960a040
1354b215bb1b688
1422cb87a80c932
15e71a415cbd80
hex71dde8bb5bb0

125197906303920 has 480 divisors, whose sum is σ = 434021898820608. Its totient is φ = 29747058352128.

The previous prime is 125197906303919. The next prime is 125197906303949. The reversal of 125197906303920 is 29303609791521.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 2101769977 + ... + 2101829543.

Almost surely, 2125197906303920 is an apocalyptic number.

125197906303920 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 125197906303920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217010949410304).

125197906303920 is an abundant number, since it is smaller than the sum of its proper divisors (308823992516688).

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

125197906303920 is a wasteful number, since it uses less digits than its factorization.

125197906303920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61065 (or 61040 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 57.

The spelling of 125197906303920 in words is "one hundred twenty-five trillion, one hundred ninety-seven billion, nine hundred six million, three hundred three thousand, nine hundred twenty".