Base | Representation |
---|---|
bin | 1001100010111… |
… | …01000011101010 |
3 | 12120200010102101 |
4 | 10301131003222 |
5 | 130444313223 |
6 | 11540124014 |
7 | 1661415541 |
oct | 461350352 |
9 | 176603371 |
10 | 80072938 |
11 | 41220a90 |
12 | 2299660a |
13 | 1378764a |
14 | a8c5158 |
15 | 706a4ad |
hex | 4c5d0ea |
80072938 has 32 divisors (see below), whose sum is σ = 136401408. Its totient is φ = 34924800.
The previous prime is 80072933. The next prime is 80072939. The reversal of 80072938 is 83927008.
It is a junction number, because it is equal to n+sod(n) for n = 80072897 and 80072906.
It is not an unprimeable number, because it can be changed into a prime (80072933) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93006 + ... + 93862.
It is an arithmetic number, because the mean of its divisors is an integer number (4262544).
Almost surely, 280072938 is an apocalyptic number.
80072938 is a deficient number, since it is larger than the sum of its proper divisors (56328470).
80072938 is a wasteful number, since it uses less digits than its factorization.
80072938 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1038.
The product of its (nonzero) digits is 24192, while the sum is 37.
The square root of 80072938 is about 8948.3483392188. The cubic root of 80072938 is about 431.0178483609.
The spelling of 80072938 in words is "eighty million, seventy-two thousand, nine hundred thirty-eight".
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