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10038839620 = 2251921390421
BaseRepresentation
bin10010101100101110…
…01000100101000100
3221220121211220001211
421112113020211010
5131024420331440
64340051101204
7503525504665
oct112627104504
927817756054
1010038839620
114291732877
121b41ba1804
13c3ca68ab4
146b339336c
153db4d0eea
hex2565c8944

10038839620 has 36 divisors (see below), whose sum is σ = 22249532844. Its totient is φ = 3804189120.

The previous prime is 10038839533. The next prime is 10038839633. The reversal of 10038839620 is 2693883001.

It can be written as a sum of positive squares in 2 ways, for example, as 1693651716 + 8345187904 = 41154^2 + 91352^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 687991 + ... + 702430.

It is an arithmetic number, because the mean of its divisors is an integer number (618042579).

Almost surely, 210038839620 is an apocalyptic number.

10038839620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10038839620 is an abundant number, since it is smaller than the sum of its proper divisors (12210693224).

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

10038839620 is a wasteful number, since it uses less digits than its factorization.

10038839620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390468 (or 1390447 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 10038839620 in words is "ten billion, thirty-eight million, eight hundred thirty-nine thousand, six hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 361 380 722 1444 1805 3610 7220 1390421 2780842 5561684 6952105 13904210 26417999 27808420 52835998 105671996 132089995 264179990 501941981 528359980 1003883962 2007767924 2509709905 5019419810 10038839620