Base | Representation |
---|---|
bin | 1000101011011… |
… | …00011010001101 |
3 | 12001222102001100 |
4 | 10111230122031 |
5 | 122113431124 |
6 | 11120133313 |
7 | 1542516423 |
oct | 425543215 |
9 | 161872040 |
10 | 72795789 |
11 | 38100610 |
12 | 20467239 |
13 | 1210a241 |
14 | 994d113 |
15 | 65ce1c9 |
hex | 456c68d |
72795789 has 12 divisors (see below), whose sum is σ = 114708672. Its totient is φ = 44118600.
The previous prime is 72795763. The next prime is 72795791. The reversal of 72795789 is 98759727.
It is not a de Polignac number, because 72795789 - 215 = 72763021 is a prime.
It is a super-2 number, since 2×727957892 = 10598453792265042, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72795739) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367557 + ... + 367754.
It is an arithmetic number, because the mean of its divisors is an integer number (9559056).
Almost surely, 272795789 is an apocalyptic number.
It is an amenable number.
72795789 is a deficient number, since it is larger than the sum of its proper divisors (41912883).
72795789 is a wasteful number, since it uses less digits than its factorization.
72795789 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 735328 (or 735325 counting only the distinct ones).
The product of its digits is 2222640, while the sum is 54.
The square root of 72795789 is about 8532.0448311058. The cubic root of 72795789 is about 417.5438447028.
The spelling of 72795789 in words is "seventy-two million, seven hundred ninety-five thousand, seven hundred eighty-nine".
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