Base | Representation |
---|---|
bin | 101000000110110… |
… | …101010111111010 |
3 | 1201220010212000000 |
4 | 220012311113322 |
5 | 2334224130442 |
6 | 150434053430 |
7 | 22450246425 |
oct | 5006652772 |
9 | 1656125000 |
10 | 672880122 |
11 | 315906882 |
12 | 16941a276 |
13 | a9535325 |
14 | 655189bc |
15 | 3e116d4c |
hex | 281b55fa |
672880122 has 56 divisors (see below), whose sum is σ = 1520406720. Its totient is φ = 223239240.
The previous prime is 672880057. The next prime is 672880123. The reversal of 672880122 is 221088276.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (672880123) by changing a digit.
It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 347497 + ... + 349427.
It is an arithmetic number, because the mean of its divisors is an integer number (27150120).
Almost surely, 2672880122 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 672880122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (760203360).
672880122 is an abundant number, since it is smaller than the sum of its proper divisors (847526598).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
672880122 is a wasteful number, since it uses less digits than its factorization.
672880122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2190 (or 2175 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 36.
The square root of 672880122 is about 25939.9329605919. The cubic root of 672880122 is about 876.2860531373.
The spelling of 672880122 in words is "six hundred seventy-two million, eight hundred eighty thousand, one hundred twenty-two".
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