Base | Representation |
---|---|
bin | 1000101011011… |
… | …00000101111101 |
3 | 12001222100021100 |
4 | 10111230011331 |
5 | 122113410433 |
6 | 11120123313 |
7 | 1542512562 |
oct | 425540575 |
9 | 161870240 |
10 | 72794493 |
11 | 380aa642 |
12 | 20466539 |
13 | 12109785 |
14 | 994c869 |
15 | 65cdb13 |
hex | 456c17d |
72794493 has 48 divisors (see below), whose sum is σ = 116453376. Its totient is φ = 43630080.
The previous prime is 72794489. The next prime is 72794497. The reversal of 72794493 is 39449727.
72794493 is a `hidden beast` number, since 72 + 7 + 94 + 493 = 666.
It is an interprime number because it is at equal distance from previous prime (72794489) and next prime (72794497).
It is not a de Polignac number, because 72794493 - 22 = 72794489 is a prime.
It is a super-2 number, since 2×727944932 = 10598076422254098, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72794497) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 381028 + ... + 381218.
It is an arithmetic number, because the mean of its divisors is an integer number (2426112).
Almost surely, 272794493 is an apocalyptic number.
It is an amenable number.
72794493 is a deficient number, since it is larger than the sum of its proper divisors (43658883).
72794493 is a wasteful number, since it uses less digits than its factorization.
72794493 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 314 (or 311 counting only the distinct ones).
The product of its digits is 381024, while the sum is 45.
The square root of 72794493 is about 8531.9688817998. The cubic root of 72794493 is about 417.5413668120.
The spelling of 72794493 in words is "seventy-two million, seven hundred ninety-four thousand, four hundred ninety-three".
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