Base | Representation |
---|---|
bin | 1000101011100… |
… | …01110101111110 |
3 | 12002000112120200 |
4 | 10111301311332 |
5 | 122120134141 |
6 | 11120424330 |
7 | 1542641340 |
oct | 425616576 |
9 | 162015520 |
10 | 72818046 |
11 | 38116304 |
12 | 204780a6 |
13 | 12117402 |
14 | 9957290 |
15 | 65d5ab6 |
hex | 4571d7e |
72818046 has 48 divisors (see below), whose sum is σ = 188158464. Its totient is φ = 19899792.
The previous prime is 72818041. The next prime is 72818047. The reversal of 72818046 is 64081827.
It is a self number, because there is not a number n which added to its sum of digits gives 72818046.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72818041) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9666 + ... + 15461.
It is an arithmetic number, because the mean of its divisors is an integer number (3919968).
Almost surely, 272818046 is an apocalyptic number.
72818046 is an abundant number, since it is smaller than the sum of its proper divisors (115340418).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72818046 is a wasteful number, since it uses less digits than its factorization.
72818046 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25165 (or 25162 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 36.
The square root of 72818046 is about 8533.3490494647. The cubic root of 72818046 is about 417.5863944460.
The spelling of 72818046 in words is "seventy-two million, eight hundred eighteen thousand, forty-six".
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