Search a number
-
+
83403361 = 312690431
BaseRepresentation
bin1001111100010…
…10001001100001
312210221022220101
410332022021201
5132322401421
612135342401
72031626326
oct476121141
9183838811
1083403361
11430961a8
1223b21a01
1314382502
14b110b4d
1574c7191
hex4f8a261

83403361 has 4 divisors (see below), whose sum is σ = 86093824. Its totient is φ = 80712900.

The previous prime is 83403347. The next prime is 83403367. The reversal of 83403361 is 16330438.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83403361 - 27 = 83403233 is a prime.

It is a super-2 number, since 2×834033612 = 13912241252192642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83403367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1345185 + ... + 1345246.

It is an arithmetic number, because the mean of its divisors is an integer number (21523456).

Almost surely, 283403361 is an apocalyptic number.

It is an amenable number.

83403361 is a deficient number, since it is larger than the sum of its proper divisors (2690463).

83403361 is a wasteful number, since it uses less digits than its factorization.

83403361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690462.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 83403361 is about 9132.5440595707. The cubic root of 83403361 is about 436.9125477159.

Adding to 83403361 its reverse (16330438), we get a palindrome (99733799).

The spelling of 83403361 in words is "eighty-three million, four hundred three thousand, three hundred sixty-one".

Divisors: 1 31 2690431 83403361