Base | Representation |
---|---|
bin | 1001100010111… |
… | …00110101100101 |
3 | 12120200002012000 |
4 | 10301130311211 |
5 | 130444301122 |
6 | 11540115513 |
7 | 1661413113 |
oct | 461346545 |
9 | 176602160 |
10 | 80072037 |
11 | 41220341 |
12 | 22995b99 |
13 | 13787106 |
14 | a8c4ab3 |
15 | 706a0ac |
hex | 4c5cd65 |
80072037 has 8 divisors (see below), whose sum is σ = 118625280. Its totient is φ = 53381340.
The previous prime is 80072017. The next prime is 80072051. The reversal of 80072037 is 73027008.
It is not a de Polignac number, because 80072037 - 211 = 80069989 is a prime.
It is a super-2 number, since 2×800720372 = 12823062218658738, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2965631 = 80072037 / (8 + 0 + 0 + 7 + 2 + 0 + 3 + 7).
It is a self number, because there is not a number n which added to its sum of digits gives 80072037.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80072017) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1482789 + ... + 1482842.
It is an arithmetic number, because the mean of its divisors is an integer number (14828160).
Almost surely, 280072037 is an apocalyptic number.
It is an amenable number.
80072037 is a deficient number, since it is larger than the sum of its proper divisors (38553243).
80072037 is a wasteful number, since it uses less digits than its factorization.
80072037 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2965640 (or 2965634 counting only the distinct ones).
The product of its (nonzero) digits is 2352, while the sum is 27.
The square root of 80072037 is about 8948.2979945909. The cubic root of 80072037 is about 431.0162317159.
The spelling of 80072037 in words is "eighty million, seventy-two thousand, thirty-seven".
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