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13052668469 = 19686982551
BaseRepresentation
bin11000010011111111…
…11110101000110101
31020200122220021000112
430021333332220311
5203212440342334
65555111552405
7641312565011
oct141177765065
936618807015
1013052668469
115598989015
12264338b705
131300282889
148bb759541
15515da74ce
hex309ffea35

13052668469 has 4 divisors (see below), whose sum is σ = 13739651040. Its totient is φ = 12365685900.

The previous prime is 13052668427. The next prime is 13052668483. The reversal of 13052668469 is 96486625031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13052668469 is a prime.

It is a super-2 number, since 2×130526684692 (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 (13052668169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343491257 + ... + 343491294.

It is an arithmetic number, because the mean of its divisors is an integer number (3434912760).

Almost surely, 213052668469 is an apocalyptic number.

13052668469 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13052668469 is a deficient number, since it is larger than the sum of its proper divisors (686982571).

13052668469 is an equidigital number, since it uses as much as digits as its factorization.

13052668469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686982570.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 13052668469 in words is "thirteen billion, fifty-two million, six hundred sixty-eight thousand, four hundred sixty-nine".

Divisors: 1 19 686982551 13052668469