Base | Representation |
---|---|
bin | 1000101001000… |
… | …01001011101110 |
3 | 12001101202101020 |
4 | 10110201023232 |
5 | 122024101122 |
6 | 11105355010 |
7 | 1540064202 |
oct | 424411356 |
9 | 161352336 |
10 | 72487662 |
11 | 37a10065 |
12 | 20338a66 |
13 | 1202cc10 |
14 | 98acb02 |
15 | 656cc5c |
hex | 45212ee |
72487662 has 32 divisors (see below), whose sum is σ = 160353312. Its totient is φ = 21700224.
The previous prime is 72487627. The next prime is 72487669. The reversal of 72487662 is 26678427.
It is a super-2 number, since 2×724876622 = 10508922284452488, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72487669) 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, 9673 + ... + 15444.
It is an arithmetic number, because the mean of its divisors is an integer number (5011041).
Almost surely, 272487662 is an apocalyptic number.
72487662 is an abundant number, since it is smaller than the sum of its proper divisors (87865650).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72487662 is a wasteful number, since it uses less digits than its factorization.
72487662 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25172.
The product of its digits is 225792, while the sum is 42.
The square root of 72487662 is about 8513.9686398295. The cubic root of 72487662 is about 416.9538907778.
The spelling of 72487662 in words is "seventy-two million, four hundred eighty-seven thousand, six hundred sixty-two".
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