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10402144260 = 2235173369071
BaseRepresentation
bin10011011000000010…
…00010000000000100
3222211221110200100020
421230001002000010
5132300422104020
64440110015140
7515526524124
oct115401020004
928757420306
1010402144260
114458814a42
1220237a74b0
13c9a0cca61
14709724c84
1540d346c40
hex26c042004

10402144260 has 24 divisors (see below), whose sum is σ = 29126004096. Its totient is φ = 2773905120.

The previous prime is 10402144253. The next prime is 10402144273. The reversal of 10402144260 is 6244120401.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10402144260.

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, 86684476 + ... + 86684595.

It is an arithmetic number, because the mean of its divisors is an integer number (1213583504).

Almost surely, 210402144260 is an apocalyptic number.

10402144260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10402144260 is an abundant number, since it is smaller than the sum of its proper divisors (18723859836).

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

10402144260 is a wasteful number, since it uses less digits than its factorization.

10402144260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173369083 (or 173369081 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 10402144260 its reverse (6244120401), we get a palindrome (16646264661).

The spelling of 10402144260 in words is "ten billion, four hundred two million, one hundred forty-four thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 173369071 346738142 520107213 693476284 866845355 1040214426 1733690710 2080428852 2600536065 3467381420 5201072130 10402144260