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13289510794861 = 71898501542123
BaseRepresentation
bin1100000101100011010010…
…0100011111011001101101
31202001110112212010201121101
43001120310210133121231
53220213404230413421
644133041133403101
72541064315635040
oct301306444373155
952043485121541
1013289510794861
114264060428a14
1215a771a339491
13755270654062
1433d30405cc57
15180a56053191
hexc163491f66d

13289510794861 has 4 divisors (see below), whose sum is σ = 15188012336992. Its totient is φ = 11391009252732.

The previous prime is 13289510794843. The next prime is 13289510794877. The reversal of 13289510794861 is 16849701598231.

13289510794861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13289510794861 - 217 = 13289510663789 is a prime.

It is a super-2 number, since 2×132895107948612 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13289510794793 and 13289510794802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13289510794831) 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, 949250771055 + ... + 949250771068.

It is an arithmetic number, because the mean of its divisors is an integer number (3797003084248).

It is a 1-persistent number, because it is pandigital, but 2⋅13289510794861 = 26579021589722 is not.

Almost surely, 213289510794861 is an apocalyptic number.

It is an amenable number.

13289510794861 is a deficient number, since it is larger than the sum of its proper divisors (1898501542131).

13289510794861 is an equidigital number, since it uses as much as digits as its factorization.

13289510794861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898501542130.

The product of its (nonzero) digits is 26127360, while the sum is 64.

The spelling of 13289510794861 in words is "thirteen trillion, two hundred eighty-nine billion, five hundred ten million, seven hundred ninety-four thousand, eight hundred sixty-one".

Divisors: 1 7 1898501542123 13289510794861