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122133213 = 3247288731
BaseRepresentation
bin1110100011110…
…01101011011101
322111211000021100
413101321223131
5222231230323
620041423313
73012054336
oct721715335
9274730240
10122133213
1162a39544
1234a9ab39
131c3c2b97
141231328d
15aac7943
hex7479add

122133213 has 12 divisors (see below), whose sum is σ = 180168768. Its totient is φ = 79689480.

The previous prime is 122133203. The next prime is 122133217. The reversal of 122133213 is 312331221.

It is not a de Polignac number, because 122133213 - 29 = 122132701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122133217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143943 + ... + 144788.

It is an arithmetic number, because the mean of its divisors is an integer number (15014064).

Almost surely, 2122133213 is an apocalyptic number.

It is an amenable number.

122133213 is a deficient number, since it is larger than the sum of its proper divisors (58035555).

122133213 is a wasteful number, since it uses less digits than its factorization.

122133213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288784 (or 288781 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 122133213 is about 11051.3896411266. The cubic root of 122133213 is about 496.1480180092.

Adding to 122133213 its reverse (312331221), we get a palindrome (434464434).

The spelling of 122133213 in words is "one hundred twenty-two million, one hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 3 9 47 141 423 288731 866193 2598579 13570357 40711071 122133213