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12702161244 = 22319934715329
BaseRepresentation
bin10111101010001101…
…11001100101011100
31012210020100122111110
423311012321211130
5202003223124434
65500231222020
7626525406033
oct136506714534
935706318443
1012702161244
115429047823
122565b17910
13127577c856
14886d9971a
154e521d4e9
hex2f51b995c

12702161244 has 48 divisors (see below), whose sum is σ = 29875104000. Its totient is φ = 4200362496.

The previous prime is 12702161239. The next prime is 12702161249. The reversal of 12702161244 is 44216120721.

It is an interprime number because it is at equal distance from previous prime (12702161239) and next prime (12702161249).

It is a super-2 number, since 2×127021612442 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12702161249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 820972 + ... + 836300.

It is an arithmetic number, because the mean of its divisors is an integer number (622398000).

Almost surely, 212702161244 is an apocalyptic number.

It is an amenable number.

12702161244 is an abundant number, since it is smaller than the sum of its proper divisors (17172942756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12702161244 is a wasteful number, since it uses less digits than its factorization.

12702161244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15882 (or 15880 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

Adding to 12702161244 its reverse (44216120721), we get a palindrome (56918281965).

The spelling of 12702161244 in words is "twelve billion, seven hundred two million, one hundred sixty-one thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 199 347 398 597 694 796 1041 1194 1388 2082 2388 4164 15329 30658 45987 61316 69053 91974 138106 183948 207159 276212 414318 828636 3050471 5319163 6100942 9151413 10638326 12201884 15957489 18302826 21276652 31914978 36605652 63829956 1058513437 2117026874 3175540311 4234053748 6351080622 12702161244