Base | Representation |
---|---|
bin | 101100100111000… |
… | …000101000000000 |
3 | 1221011021212021120 |
4 | 230213000220000 |
5 | 3013044024210 |
6 | 202133152240 |
7 | 24355332144 |
oct | 5447005000 |
9 | 1834255246 |
10 | 748423680 |
11 | 354513874 |
12 | 18a78b680 |
13 | bc095164 |
14 | 71581224 |
15 | 45a8a270 |
hex | 2c9c0a00 |
748423680 has 320 divisors, whose sum is σ = 2639831040. Its totient is φ = 180043776.
The previous prime is 748423651. The next prime is 748423721. The reversal of 748423680 is 86324847.
It is a tau number, because it is divible by the number of its divisors (320).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3356049 + ... + 3356271.
It is an arithmetic number, because the mean of its divisors is an integer number (8249472).
Almost surely, 2748423680 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 748423680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1319915520).
748423680 is an abundant number, since it is smaller than the sum of its proper divisors (1891407360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
748423680 is a wasteful number, since it uses less digits than its factorization.
748423680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 291 (or 275 counting only the distinct ones).
The product of its (nonzero) digits is 258048, while the sum is 42.
The square root of 748423680 is about 27357.3332033661. Note that the first 3 decimals coincide. The cubic root of 748423680 is about 907.9233247240.
The spelling of 748423680 in words is "seven hundred forty-eight million, four hundred twenty-three thousand, six hundred eighty".
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