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10505125253 = 711003136393
BaseRepresentation
bin10011100100010011…
…10111110110000101
31000010010020122201002
421302021313312011
5133003303002003
64454225143045
7521220043220
oct116211676605
930103218632
1010505125253
1145009620a7
12205218aa85
13cb554835c
147192905b7
154173d9a88
hex272277d85

10505125253 has 8 divisors (see below), whose sum is σ = 12007036608. Its totient is φ = 9003508704.

The previous prime is 10505125249. The next prime is 10505125259. The reversal of 10505125253 is 35252150501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10505125253 - 22 = 10505125249 is a prime.

It is a super-2 number, since 2×105051252532 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10505125259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8825 + ... + 145217.

It is an arithmetic number, because the mean of its divisors is an integer number (1500879576).

Almost surely, 210505125253 is an apocalyptic number.

It is an amenable number.

10505125253 is a deficient number, since it is larger than the sum of its proper divisors (1501911355).

10505125253 is a wasteful number, since it uses less digits than its factorization.

10505125253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147403.

The product of its (nonzero) digits is 7500, while the sum is 29.

Adding to 10505125253 its reverse (35252150501), we get a palindrome (45757275754).

The spelling of 10505125253 in words is "ten billion, five hundred five million, one hundred twenty-five thousand, two hundred fifty-three".

Divisors: 1 7 11003 77021 136393 954751 1500732179 10505125253