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10139029640 = 2355926915971
BaseRepresentation
bin10010111000101010…
…10101000010001000
3222011121101001221022
421130111111002020
5131231042422030
64354030332012
7506153221115
oct113425250210
928147331838
1010139029640
114333244043
121b6b65a008
13c57747c2c
146c27d390c
153e51c1de5
hex25c555088

10139029640 has 64 divisors (see below), whose sum is σ = 23287176000. Its totient is φ = 3971802880.

The previous prime is 10139029639. The next prime is 10139029651. The reversal of 10139029640 is 4692093101.

It is a self number, because there is not a number n which added to its sum of digits gives 10139029640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626855 + ... + 642825.

It is an arithmetic number, because the mean of its divisors is an integer number (363862125).

Almost surely, 210139029640 is an apocalyptic number.

10139029640 is a gapful number since it is divisible by the number (10) 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 10139029640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11643588000).

10139029640 is an abundant number, since it is smaller than the sum of its proper divisors (13148146360).

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

10139029640 is a wasteful number, since it uses less digits than its factorization.

10139029640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16310 (or 16306 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 10139029640 in words is "ten billion, one hundred thirty-nine million, twenty-nine thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 59 118 236 269 295 472 538 590 1076 1180 1345 2152 2360 2690 5380 10760 15871 15971 31742 31942 63484 63884 79355 79855 126968 127768 158710 159710 317420 319420 634840 638840 942289 1884578 3769156 4296199 4711445 7538312 8592398 9422890 17184796 18845780 21480995 34369592 37691560 42961990 85923980 171847960 253475741 506951482 1013902964 1267378705 2027805928 2534757410 5069514820 10139029640