Search a number
-
+
83233405 = 516646681
BaseRepresentation
bin1001111011000…
…00101001111101
312210121200202201
410331200221331
5132301432110
612131551501
72030320663
oct475405175
9183550681
1083233405
1142a8a542
1223a5b591
1314323048
14b0a8c33
157491b3a
hex4f60a7d

83233405 has 4 divisors (see below), whose sum is σ = 99880092. Its totient is φ = 66586720.

The previous prime is 83233399. The next prime is 83233417. The reversal of 83233405 is 50433238.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32695524 + 50537881 = 5718^2 + 7109^2 .

It is not a de Polignac number, because 83233405 - 213 = 83225213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8323336 + ... + 8323345.

It is an arithmetic number, because the mean of its divisors is an integer number (24970023).

Almost surely, 283233405 is an apocalyptic number.

It is an amenable number.

83233405 is a deficient number, since it is larger than the sum of its proper divisors (16646687).

83233405 is a wasteful number, since it uses less digits than its factorization.

83233405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16646686.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 83233405 is about 9123.2343497249. The cubic root of 83233405 is about 436.6155716556.

It can be divided in two parts, 83233 and 405, that added together give a palindrome (83638).

The spelling of 83233405 in words is "eighty-three million, two hundred thirty-three thousand, four hundred five".

Divisors: 1 5 16646681 83233405