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38801398840 = 235970034971
BaseRepresentation
bin100100001000101111…
…100101110000111000
310201011010200021210221
4210020233211300320
51113431124230330
625454120345424
72542351306531
oct441057456070
9121133607727
1038801398840
1115501418276
12762a615274
13387495a9c9
141c41323688
151021675b7a
hex908be5c38

38801398840 has 16 divisors (see below), whose sum is σ = 87303147480. Its totient is φ = 15520559520.

The previous prime is 38801398829. The next prime is 38801398847. The reversal of 38801398840 is 4889310883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38801398847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485017446 + ... + 485017525.

Almost surely, 238801398840 is an apocalyptic number.

It is an amenable number.

38801398840 is an abundant number, since it is smaller than the sum of its proper divisors (48501748640).

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

38801398840 is a wasteful number, since it uses less digits than its factorization.

38801398840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970034982 (or 970034978 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 38801398840 in words is "thirty-eight billion, eight hundred one million, three hundred ninety-eight thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 970034971 1940069942 3880139884 4850174855 7760279768 9700349710 19400699420 38801398840