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13823872469 = 111256715679
BaseRepresentation
bin11001101111111011…
…11000110111010101
31022200102001111000122
430313331320313111
5211302402404334
610203421321325
7666365656121
oct146775706725
938612044018
1013823872469
115954240aa0
122819706245
1313c3c927c4
14951d4a581
1555d94232e
hex337f78dd5

13823872469 has 4 divisors (see below), whose sum is σ = 15080588160. Its totient is φ = 12567156780.

The previous prime is 13823872429. The next prime is 13823872477. The reversal of 13823872469 is 96427832831.

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 not a de Polignac number, because 13823872469 - 216 = 13823806933 is a prime.

It is a super-2 number, since 2×138238724692 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13823872469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13823872429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628357829 + ... + 628357850.

It is an arithmetic number, because the mean of its divisors is an integer number (3770147040).

Almost surely, 213823872469 is an apocalyptic number.

It is an amenable number.

13823872469 is a deficient number, since it is larger than the sum of its proper divisors (1256715691).

13823872469 is a wasteful number, since it uses less digits than its factorization.

13823872469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256715690.

The product of its digits is 3483648, while the sum is 53.

The spelling of 13823872469 in words is "thirteen billion, eight hundred twenty-three million, eight hundred seventy-two thousand, four hundred sixty-nine".

Divisors: 1 11 1256715679 13823872469