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122136244 = 22109280129
BaseRepresentation
bin1110100011110…
…10011010110100
322111211011102121
413101322122310
5222231324434
620041445324
73012066226
oct721723264
9274734377
10122136244
1162a4084a
1234aa0844
131c3c4389
1412314416
15aac87b4
hex747a6b4

122136244 has 12 divisors (see below), whose sum is σ = 215700100. Its totient is φ = 60507648.

The previous prime is 122136241. The next prime is 122136251. The reversal of 122136244 is 442631221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68260644 + 53875600 = 8262^2 + 7340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122136241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139629 + ... + 140500.

Almost surely, 2122136244 is an apocalyptic number.

It is an amenable number.

122136244 is a deficient number, since it is larger than the sum of its proper divisors (93563856).

122136244 is a wasteful number, since it uses less digits than its factorization.

122136244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280242 (or 280240 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 122136244 is about 11051.5267723514. The cubic root of 122136244 is about 496.1521223042.

Adding to 122136244 its reverse (442631221), we get a palindrome (564767465).

The spelling of 122136244 in words is "one hundred twenty-two million, one hundred thirty-six thousand, two hundred forty-four".

Divisors: 1 2 4 109 218 436 280129 560258 1120516 30534061 61068122 122136244