Base | Representation |
---|---|
bin | 1000101001000… |
… | …01000001111101 |
3 | 12001101201112002 |
4 | 10110201001331 |
5 | 122024041122 |
6 | 11105352045 |
7 | 1540062320 |
oct | 424410175 |
9 | 161351462 |
10 | 72487037 |
11 | 37a0a647 |
12 | 20338625 |
13 | 1202c84c |
14 | 98ac7b7 |
15 | 656c992 |
hex | 452107d |
72487037 has 8 divisors (see below), whose sum is σ = 85699200. Its totient is φ = 59989104.
The previous prime is 72487013. The next prime is 72487049. The reversal of 72487037 is 73078427.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 72487037 - 28 = 72486781 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72487537) 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, 178337 + ... + 178742.
It is an arithmetic number, because the mean of its divisors is an integer number (10712400).
Almost surely, 272487037 is an apocalyptic number.
It is an amenable number.
72487037 is a deficient number, since it is larger than the sum of its proper divisors (13212163).
72487037 is a wasteful number, since it uses less digits than its factorization.
72487037 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 357115.
The product of its (nonzero) digits is 65856, while the sum is 38.
The square root of 72487037 is about 8513.9319353634. The cubic root of 72487037 is about 416.9526924271.
The spelling of 72487037 in words is "seventy-two million, four hundred eighty-seven thousand, thirty-seven".
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