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39899195080 = 2351516605827
BaseRepresentation
bin100101001010001011…
…010110011011001000
310210222122101010010221
4211022023112123020
51123203143220310
630155054115424
72611511363623
oct451213263310
9123878333127
1039899195080
1115a15067898
1278961abb74
1339bb219594
141d0704adba
151087c23ada
hex94a2d66c8

39899195080 has 32 divisors (see below), whose sum is σ = 90367727040. Its totient is φ = 15853982400.

The previous prime is 39899195057. The next prime is 39899195093. The reversal of 39899195080 is 8059199893.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3296874 + ... + 3308953.

It is an arithmetic number, because the mean of its divisors is an integer number (2823991470).

Almost surely, 239899195080 is an apocalyptic number.

It is an amenable number.

39899195080 is an abundant number, since it is smaller than the sum of its proper divisors (50468531960).

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

39899195080 is a wasteful number, since it uses less digits than its factorization.

39899195080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6605989 (or 6605985 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 61.

The spelling of 39899195080 in words is "thirty-nine billion, eight hundred ninety-nine million, one hundred ninety-five thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 151 302 604 755 1208 1510 3020 6040 6605827 13211654 26423308 33029135 52846616 66058270 132116540 264233080 997479877 1994959754 3989919508 4987399385 7979839016 9974798770 19949597540 39899195080