Base | Representation |
---|---|
bin | 1110101010010… |
… | …00011100110000 |
3 | 22120102001001011 |
4 | 13111020130300 |
5 | 222440331034 |
6 | 20111520304 |
7 | 3022212460 |
oct | 725103460 |
9 | 276361034 |
10 | 122980144 |
11 | 63467891 |
12 | 35229094 |
13 | 1c62b521 |
14 | 12493ba0 |
15 | abe3864 |
hex | 7548730 |
122980144 has 20 divisors (see below), whose sum is σ = 272313424. Its totient is φ = 52705728.
The previous prime is 122980139. The next prime is 122980147. The reversal of 122980144 is 441089221.
It is not an unprimeable number, because it can be changed into a prime (122980147) 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, 548907 + ... + 549130.
Almost surely, 2122980144 is an apocalyptic number.
122980144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
122980144 is an abundant number, since it is smaller than the sum of its proper divisors (149333280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
122980144 is a wasteful number, since it uses less digits than its factorization.
122980144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1098052 (or 1098046 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 31.
The square root of 122980144 is about 11089.6412926659. The cubic root of 122980144 is about 497.2922210040.
The spelling of 122980144 in words is "one hundred twenty-two million, nine hundred eighty thousand, one hundred forty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.089 sec. • engine limits •