Base | Representation |
---|---|
bin | 101100100101011… |
… | …011001010010001 |
3 | 1221010111202012000 |
4 | 230211123022101 |
5 | 3012442224311 |
6 | 202120224213 |
7 | 24351651402 |
oct | 5445331221 |
9 | 1833452160 |
10 | 748008081 |
11 | 35425a5a7 |
12 | 18a60b069 |
13 | bbc7ac42 |
14 | 714b39a9 |
15 | 45a07056 |
hex | 2c95b291 |
748008081 has 16 divisors (see below), whose sum is σ = 1116254400. Its totient is φ = 495029664.
The previous prime is 748008073. The next prime is 748008101. The reversal of 748008081 is 180800847.
It is not a de Polignac number, because 748008081 - 23 = 748008073 is a prime.
It is a super-2 number, since 2×7480080812 = 1119032178482605122, which contains 22 as substring.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (748008011) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97411 + ... + 104808.
It is an arithmetic number, because the mean of its divisors is an integer number (69765900).
Almost surely, 2748008081 is an apocalyptic number.
It is an amenable number.
748008081 is a deficient number, since it is larger than the sum of its proper divisors (368246319).
748008081 is a wasteful number, since it uses less digits than its factorization.
748008081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 202365 (or 202359 counting only the distinct ones).
The product of its (nonzero) digits is 14336, while the sum is 36.
The square root of 748008081 is about 27349.7363972672. The cubic root of 748008081 is about 907.7552372706.
The spelling of 748008081 in words is "seven hundred forty-eight million, eight thousand, eighty-one".
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