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2257072725908 = 22731113611031831
BaseRepresentation
bin100000110110000100000…
…001001001111110010100
321222202220021112102001202
4200312010001021332110
5243434441104212113
64444515045412032
7322032236423000
oct40660401117624
97882807472052
102257072725908
117a0245791760
1230552910a018
13134ac1a10680
147b35874d700
153daa1bc9258
hex20d84049f94

2257072725908 has 384 divisors, whose sum is σ = 5556711014400. Its totient is φ = 790243776000.

The previous prime is 2257072725881. The next prime is 2257072725949. The reversal of 2257072725908 is 8095272707522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1232698553 + ... + 1232700383.

It is an arithmetic number, because the mean of its divisors is an integer number (14470601600).

Almost surely, 22257072725908 is an apocalyptic number.

2257072725908 is a gapful number since it is divisible by the number (28) 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 2257072725908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2778355507200).

2257072725908 is an abundant number, since it is smaller than the sum of its proper divisors (3299638288492).

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

2257072725908 is a wasteful number, since it uses less digits than its factorization.

2257072725908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044 (or 2028 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 56.

The spelling of 2257072725908 in words is "two trillion, two hundred fifty-seven billion, seventy-two million, seven hundred twenty-five thousand, nine hundred eight".