Base | Representation |
---|---|
bin | 10000001111011… |
… | …101111111111011 |
3 | 200222201221200102 |
4 | 100033131333323 |
5 | 1024224143431 |
6 | 43012230015 |
7 | 6516062630 |
oct | 2017357773 |
9 | 628657612 |
10 | 272490491 |
11 | 12a8a5159 |
12 | 7730b30b |
13 | 445b85a0 |
14 | 28292187 |
15 | 18dc7dcb |
hex | 103ddffb |
272490491 has 16 divisors (see below), whose sum is σ = 336000000. Its totient is φ = 215193888.
The previous prime is 272490473. The next prime is 272490503. The reversal of 272490491 is 194094272.
It is not a de Polignac number, because 272490491 - 210 = 272489467 is a prime.
It is not an unprimeable number, because it can be changed into a prime (272490431) 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, 52010 + ... + 57008.
It is an arithmetic number, because the mean of its divisors is an integer number (21000000).
Almost surely, 2272490491 is an apocalyptic number.
272490491 is a deficient number, since it is larger than the sum of its proper divisors (63509509).
272490491 is a wasteful number, since it uses less digits than its factorization.
272490491 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5618.
The product of its (nonzero) digits is 36288, while the sum is 38.
The square root of 272490491 is about 16507.2859974013. The cubic root of 272490491 is about 648.3115872782.
The spelling of 272490491 in words is "two hundred seventy-two million, four hundred ninety thousand, four hundred ninety-one".
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