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13213123010 = 2517257302429
BaseRepresentation
bin11000100111001000…
…00100000111000010
31021002211211012021022
430103210010013002
5204030024414020
610023043025442
7645301456343
oct142344040702
937084735238
1013213123010
11567051097a
12268906b282
1313275a21a9
148d4ba60ca
15524eee625
hex3139041c2

13213123010 has 32 divisors (see below), whose sum is σ = 25280728560. Its totient is φ = 4954980352.

The previous prime is 13213123009. The next prime is 13213123067. The reversal of 13213123010 is 1032131231.

It can be written as a sum of positive squares in 8 ways, for example, as 12059773489 + 1153349521 = 109817^2 + 33961^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 13213123010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107525 + ... + 194904.

Almost surely, 213213123010 is an apocalyptic number.

13213123010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13213123010 is a deficient number, since it is larger than the sum of its proper divisors (12067605550).

13213123010 is a wasteful number, since it uses less digits than its factorization.

13213123010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302710.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13213123010 its reverse (1032131231), we get a palindrome (14245254241).

The spelling of 13213123010 in words is "thirteen billion, two hundred thirteen million, one hundred twenty-three thousand, ten".

Divisors: 1 2 5 10 17 34 85 170 257 514 1285 2570 4369 8738 21845 43690 302429 604858 1512145 3024290 5141293 10282586 25706465 51412930 77724253 155448506 388621265 777242530 1321312301 2642624602 6606561505 13213123010