Base | Representation |
---|---|
bin | 1000101010011… |
… | …10100010001001 |
3 | 12001202012012001 |
4 | 10111032202021 |
5 | 122101022132 |
6 | 11113351001 |
7 | 1541466565 |
oct | 425164211 |
9 | 161665161 |
10 | 72673417 |
11 | 38027683 |
12 | 20408461 |
13 | 1209662b |
14 | 991a6a5 |
15 | 65a7ce7 |
hex | 454e889 |
72673417 has 2 divisors, whose sum is σ = 72673418. Its totient is φ = 72673416.
The previous prime is 72673373. The next prime is 72673451. The reversal of 72673417 is 71437627.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 72182016 + 491401 = 8496^2 + 701^2 .
It is a cyclic number.
It is not a de Polignac number, because 72673417 - 211 = 72671369 is a prime.
It is not a weakly prime, because it can be changed into another prime (72673457) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36336708 + 36336709.
It is an arithmetic number, because the mean of its divisors is an integer number (36336709).
Almost surely, 272673417 is an apocalyptic number.
It is an amenable number.
72673417 is a deficient number, since it is larger than the sum of its proper divisors (1).
72673417 is an equidigital number, since it uses as much as digits as its factorization.
72673417 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 49392, while the sum is 37.
The square root of 72673417 is about 8524.8704975501. The cubic root of 72673417 is about 417.3097453866.
The spelling of 72673417 in words is "seventy-two million, six hundred seventy-three thousand, four hundred seventeen".
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