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122105133 = 3228334789
BaseRepresentation
bin1110100011100…
…10110100101101
322111202120202100
413101302310231
5222224331013
620041045313
73011606433
oct721626455
9274676670
10122105133
1162a1a437
1234a86839
131c3b3177
1412306d53
15aabe473
hex7472d2d

122105133 has 12 divisors (see below), whose sum is σ = 176473180. Its totient is φ = 81357696.

The previous prime is 122105119. The next prime is 122105141. The reversal of 122105133 is 331501221.

It can be written as a sum of positive squares in 2 ways, for example, as 25220484 + 96884649 = 5022^2 + 9843^2 .

It is not a de Polignac number, because 122105133 - 224 = 105327917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23103 + ... + 27891.

Almost surely, 2122105133 is an apocalyptic number.

It is an amenable number.

122105133 is a deficient number, since it is larger than the sum of its proper divisors (54368047).

122105133 is a wasteful number, since it uses less digits than its factorization.

122105133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628 (or 7625 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 122105133 is about 11050.1191396292. The cubic root of 122105133 is about 496.1099914865.

Adding to 122105133 its reverse (331501221), we get a palindrome (453606354).

The spelling of 122105133 in words is "one hundred twenty-two million, one hundred five thousand, one hundred thirty-three".

Divisors: 1 3 9 2833 4789 8499 14367 25497 43101 13567237 40701711 122105133