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12122230434 = 232969667991
BaseRepresentation
bin10110100101000101…
…01000111010100010
31011021211010002222120
423102202220322202
5144311242333214
65322513245110
7606254154456
oct132242507242
934254102876
1012122230434
115160757166
122423863796
1311b258ca22
1482dd58666
154ae366ea9
hex2d28a8ea2

12122230434 has 16 divisors (see below), whose sum is σ = 25080477120. Its totient is φ = 3901407440.

The previous prime is 12122230433. The next prime is 12122230441. The reversal of 12122230434 is 43403222121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12122230433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34833822 + ... + 34834169.

It is an arithmetic number, because the mean of its divisors is an integer number (1567529820).

Almost surely, 212122230434 is an apocalyptic number.

12122230434 is an abundant number, since it is smaller than the sum of its proper divisors (12958246686).

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

12122230434 is a wasteful number, since it uses less digits than its factorization.

12122230434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69668025.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12122230434 its reverse (43403222121), we get a palindrome (55525452555).

It can be divided in two parts, 12122 and 230434, that added together give a triangular number (242556 = T696).

The spelling of 12122230434 in words is "twelve billion, one hundred twenty-two million, two hundred thirty thousand, four hundred thirty-four".

Divisors: 1 2 3 6 29 58 87 174 69667991 139335982 209003973 418007946 2020371739 4040743478 6061115217 12122230434