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122085938 = 21326012
BaseRepresentation
bin1110100011011…
…10001000110010
322111201121102102
413101232020302
5222223222223
620040420402
73011466452
oct721561062
9274647372
10122085938
1162a06a77
1234a77702
131c3a7500
14122ddd62
15aab8928
hex746e232

122085938 has 18 divisors (see below), whose sum is σ = 198629847. Its totient is φ = 56253600.

The previous prime is 122085937. The next prime is 122085947. The reversal of 122085938 is 839580221.

It can be written as a sum of positive squares in 5 ways, for example, as 59089969 + 62995969 = 7687^2 + 7937^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=7813.

It is not an unprimeable number, because it can be changed into a prime (122085937) 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 8 ways as a sum of consecutive naturals, for example, 202838 + ... + 203438.

Almost surely, 2122085938 is an apocalyptic number.

122085938 is a deficient number, since it is larger than the sum of its proper divisors (76543909).

122085938 is an frugal number, since it uses more digits than its factorization.

122085938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 122085938 is about 11049.2505628210. The cubic root of 122085938 is about 496.0839938617.

The spelling of 122085938 in words is "one hundred twenty-two million, eighty-five thousand, nine hundred thirty-eight".

Divisors: 1 2 13 26 169 338 601 1202 7813 15626 101569 203138 361201 722402 4695613 9391226 61042969 122085938