Base | Representation |
---|---|
bin | 1110100011110… |
… | …01001000101100 |
3 | 22111210220012221 |
4 | 13101321020230 |
5 | 222231142423 |
6 | 20041405124 |
7 | 3012045010 |
oct | 721711054 |
9 | 274726187 |
10 | 122130988 |
11 | 62a37901 |
12 | 34a997a4 |
13 | 1c3c1b75 |
14 | 12312540 |
15 | aac6e5d |
hex | 747922c |
122130988 has 12 divisors (see below), whose sum is σ = 244262032. Its totient is φ = 52341840.
The previous prime is 122130973. The next prime is 122130991. The reversal of 122130988 is 889031221.
122130988 is an admirable number.
It is a super-2 number, since 2×1221309882 = 29831956459712288, which contains 22 as substring.
It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
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, 2180883 + ... + 2180938.
Almost surely, 2122130988 is an apocalyptic number.
It is an amenable number.
122130988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
122130988 is a wasteful number, since it uses less digits than its factorization.
122130988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4361832 (or 4361830 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 34.
The square root of 122130988 is about 11051.2889745948. The cubic root of 122130988 is about 496.1450050804.
The spelling of 122130988 in words is "one hundred twenty-two million, one hundred thirty thousand, nine hundred eighty-eight".
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