Base | Representation |
---|---|
bin | 1000101010000… |
… | …11011100001100 |
3 | 12001122212212012 |
4 | 10111003130030 |
5 | 122043043410 |
6 | 11112400352 |
7 | 1541220245 |
oct | 425033414 |
9 | 161585765 |
10 | 72627980 |
11 | 37aa6527 |
12 | 203a60b8 |
13 | 1207ba49 |
14 | 9907ccc |
15 | 6599605 |
hex | 454370c |
72627980 has 24 divisors (see below), whose sum is σ = 153535200. Its totient is φ = 28857600.
The previous prime is 72627979. The next prime is 72627983. The reversal of 72627980 is 8972627.
It is not an unprimeable number, because it can be changed into a prime (72627983) 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 in 7 ways as a sum of consecutive naturals, for example, 9005 + ... + 15044.
It is an arithmetic number, because the mean of its divisors is an integer number (6397300).
Almost surely, 272627980 is an apocalyptic number.
It is an amenable number.
72627980 is an abundant number, since it is smaller than the sum of its proper divisors (80907220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72627980 is a wasteful number, since it uses less digits than its factorization.
72627980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24209 (or 24207 counting only the distinct ones).
The product of its (nonzero) digits is 84672, while the sum is 41.
The square root of 72627980 is about 8522.2051137015. The cubic root of 72627980 is about 417.2227568804. Note that the first 3 decimals are identical.
The spelling of 72627980 in words is "seventy-two million, six hundred twenty-seven thousand, nine hundred eighty".
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