Search a number
-
+
72804233 = 418832011
BaseRepresentation
bin1000101011011…
…10011110001001
312001222211122002
410111232132021
5122114213413
611120240345
71542553145
oct425563611
9161884562
1072804233
1138106997
12204700b5
1312111038
149952225
1565d1958
hex456e789

72804233 has 8 divisors (see below), whose sum is σ = 74701536. Its totient is φ = 70912800.

The previous prime is 72804209. The next prime is 72804241. The reversal of 72804233 is 33240827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72804233 - 210 = 72803209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72804196 and 72804205.

It is not an unprimeable number, because it can be changed into a prime (72804253) 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, 35198 + ... + 37208.

It is an arithmetic number, because the mean of its divisors is an integer number (9337692).

Almost surely, 272804233 is an apocalyptic number.

It is an amenable number.

72804233 is a deficient number, since it is larger than the sum of its proper divisors (1897303).

72804233 is a wasteful number, since it uses less digits than its factorization.

72804233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 72804233 is about 8532.5396571009. The cubic root of 72804233 is about 417.5599885116.

It can be divided in two parts, 72804 and 233, that added together give a palindrome (73037).

The spelling of 72804233 in words is "seventy-two million, eight hundred four thousand, two hundred thirty-three".

Divisors: 1 41 883 2011 36203 82451 1775713 72804233