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38808698880 = 214357171327
BaseRepresentation
bin100100001001001011…
…011100000000000000
310201011122102011120210
4210021023130000000
51113440011331010
625454541034120
72542500332460
oct441113340000
9121148364523
1038808698880
1115505553966
127630b55940
133876315663
141c422a3ba0
151022118b20
hex9092dc000

38808698880 has 480 divisors, whose sum is σ = 150386374656. Its totient is φ = 8342470656.

The previous prime is 38808698857. The next prime is 38808698891. The reversal of 38808698880 is 8889680883.

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

It is a super-2 number, since 2×388086988802 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29244777 + ... + 29246103.

Almost surely, 238808698880 is an apocalyptic number.

38808698880 is a gapful number since it is divisible by the number (30) 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 38808698880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75193187328).

38808698880 is an abundant number, since it is smaller than the sum of its proper divisors (111577675776).

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

38808698880 is a wasteful number, since it uses less digits than its factorization.

38808698880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387 (or 1361 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 66.

The spelling of 38808698880 in words is "thirty-eight billion, eight hundred eight million, six hundred ninety-eight thousand, eight hundred eighty".