Base | Representation |
---|---|
bin | 1000101001000… |
… | …10101010001111 |
3 | 12001102001200021 |
4 | 10110202222033 |
5 | 122024244321 |
6 | 11105443011 |
7 | 1540120633 |
oct | 424425217 |
9 | 161361607 |
10 | 72493711 |
11 | 37a14664 |
12 | 20340467 |
13 | 120328b4 |
14 | 98b0dc3 |
15 | 656e941 |
hex | 4522a8f |
72493711 has 2 divisors, whose sum is σ = 72493712. Its totient is φ = 72493710.
The previous prime is 72493709. The next prime is 72493727. The reversal of 72493711 is 11739427.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 72493711 - 21 = 72493709 is a prime.
Together with 72493709, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (72491711) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36246855 + 36246856.
It is an arithmetic number, because the mean of its divisors is an integer number (36246856).
Almost surely, 272493711 is an apocalyptic number.
72493711 is a deficient number, since it is larger than the sum of its proper divisors (1).
72493711 is an equidigital number, since it uses as much as digits as its factorization.
72493711 is an evil number, because the sum of its binary digits is even.
The product of its digits is 10584, while the sum is 34.
The square root of 72493711 is about 8514.3238721580. The cubic root of 72493711 is about 416.9654885397.
The spelling of 72493711 in words is "seventy-two million, four hundred ninety-three thousand, seven hundred eleven".
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