Base | Representation |
---|---|
bin | 101100101000000… |
… | …001101100100000 |
3 | 1221011210101212222 |
4 | 230220001230200 |
5 | 3013131041313 |
6 | 202143010212 |
7 | 24360522200 |
oct | 5450015440 |
9 | 1834711788 |
10 | 748690208 |
11 | 354686042 |
12 | 18a899968 |
13 | bc159576 |
14 | 71610400 |
15 | 45ade208 |
hex | 2ca01b20 |
748690208 has 54 divisors (see below), whose sum is σ = 1717119243. Its totient is φ = 320402880.
The previous prime is 748690199. The next prime is 748690223. The reversal of 748690208 is 802096847.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in only one way, i.e., 374345104 + 374345104 = 19348^2 + 19348^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=19348.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1083143 + ... + 1083833.
Almost surely, 2748690208 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 748690208
748690208 is an abundant number, since it is smaller than the sum of its proper divisors (968429035).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
748690208 is an frugal number, since it uses more digits than its factorization.
748690208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1406 (or 700 counting only the distinct ones).
The product of its (nonzero) digits is 193536, while the sum is 44.
The square root of 748690208 is about 27362.2040047946. The cubic root of 748690208 is about 908.0310882251.
The spelling of 748690208 in words is "seven hundred forty-eight million, six hundred ninety thousand, two hundred eight".
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