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10538135287 = 176778631061
BaseRepresentation
bin10011101000001111…
…10010111011110111
31000012102100201221221
421310013302323313
5133040230312122
64501404451211
7522100446331
oct116407627367
930172321857
1010538135287
114518559019
122061249b07
13cbc335414
1471d804451
1541a25a6c7
hex2741f2ef7

10538135287 has 16 divisors (see below), whose sum is σ = 11197999872. Its totient is φ = 9882795520.

The previous prime is 10538135269. The next prime is 10538135291. The reversal of 10538135287 is 78253183501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10538135287 is a prime.

It is a super-2 number, since 2×105381352872 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10538135227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9931737 + ... + 9932797.

It is an arithmetic number, because the mean of its divisors is an integer number (699874992).

Almost surely, 210538135287 is an apocalyptic number.

10538135287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

10538135287 is a deficient number, since it is larger than the sum of its proper divisors (659864585).

10538135287 is a wasteful number, since it uses less digits than its factorization.

10538135287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 10538135287 in words is "ten billion, five hundred thirty-eight million, one hundred thirty-five thousand, two hundred eighty-seven".

Divisors: 1 17 677 863 1061 11509 14671 18037 584251 718297 915643 9932267 12211049 15565931 619890311 10538135287