Search a number
-
+
198330461 = 728332923
BaseRepresentation
bin10111101001001…
…00100001011101
3111211012020020122
423310210201131
5401233033321
631402524325
74625531630
oct1364444135
9454166218
10198330461
11a1a5267a
12565066a5
1332121404
141c4a9c17
15126298ab
hexbd2485d

198330461 has 4 divisors (see below), whose sum is σ = 226663392. Its totient is φ = 169997532.

The previous prime is 198330443. The next prime is 198330469. The reversal of 198330461 is 164033891.

198330461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 198330461 - 218 = 198068317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198330469) 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, 14166455 + ... + 14166468.

It is an arithmetic number, because the mean of its divisors is an integer number (56665848).

Almost surely, 2198330461 is an apocalyptic number.

It is an amenable number.

198330461 is a deficient number, since it is larger than the sum of its proper divisors (28332931).

198330461 is an equidigital number, since it uses as much as digits as its factorization.

198330461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28332930.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 198330461 is about 14082.9848043659. The cubic root of 198330461 is about 583.1717447029.

The spelling of 198330461 in words is "one hundred ninety-eight million, three hundred thirty thousand, four hundred sixty-one".

Divisors: 1 7 28332923 198330461