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122312132 = 22179170827
BaseRepresentation
bin1110100101001…
…01010111000100
322112011002200222
413102211113010
5222302442012
620045323512
73013431065
oct722452704
9275132628
10122312132
1163050a08
1234b66598
131c456457
141235c56c
15ab10972
hex74a55c4

122312132 has 12 divisors (see below), whose sum is σ = 215243280. Its totient is φ = 60814056.

The previous prime is 122312131. The next prime is 122312147. The reversal of 122312132 is 231213221.

It is a self number, because there is not a number n which added to its sum of digits gives 122312132.

It is not an unprimeable number, because it can be changed into a prime (122312131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84698 + ... + 86129.

It is an arithmetic number, because the mean of its divisors is an integer number (17936940).

Almost surely, 2122312132 is an apocalyptic number.

It is an amenable number.

122312132 is a deficient number, since it is larger than the sum of its proper divisors (92931148).

122312132 is a wasteful number, since it uses less digits than its factorization.

122312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171010 (or 171008 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 122312132 is about 11059.4815430019. The cubic root of 122312132 is about 496.3901770755.

Adding to 122312132 its reverse (231213221), we get a palindrome (353525353).

The spelling of 122312132 in words is "one hundred twenty-two million, three hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 4 179 358 716 170827 341654 683308 30578033 61156066 122312132