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10639142950 = 2521037572729
BaseRepresentation
bin10011110100010010…
…00111000000100110
31000110110102110102111
421322021013000212
5133242110033300
64515413431234
7524435136322
oct117211070046
930413373374
1010639142950
11456a578627
12208b03b51a
13100723c777
1472cdb8982
1542405d9ba
hex27a247026

10639142950 has 48 divisors (see below), whose sum is σ = 20014656480. Its totient is φ = 4207230720.

The previous prime is 10639142923. The next prime is 10639142957. The reversal of 10639142950 is 5924193601.

It is a super-2 number, since 2×106391429502 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10639142957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3897186 + ... + 3899914.

It is an arithmetic number, because the mean of its divisors is an integer number (416972010).

Almost surely, 210639142950 is an apocalyptic number.

10639142950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10639142950 is a deficient number, since it is larger than the sum of its proper divisors (9375513530).

10639142950 is a wasteful number, since it uses less digits than its factorization.

10639142950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601 (or 3596 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 10639142950 in words is "ten billion, six hundred thirty-nine million, one hundred forty-two thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 103 206 515 757 1030 1514 2575 2729 3785 5150 5458 7570 13645 18925 27290 37850 68225 77971 136450 155942 281087 389855 562174 779710 1405435 1949275 2065853 2810870 3898550 4131706 7027175 10329265 14054350 20658530 51646325 103292650 212782859 425565718 1063914295 2127828590 5319571475 10639142950