Search a number
-
+
452055181 = 919491899
BaseRepresentation
bin11010111100011…
…101000010001101
31011111121210010111
4122330131002031
51411211231211
6112505040021
714126256064
oct3274350215
91144553114
10452055181
1121219a826
12107486011
1372869296
14440751db
1529a47421
hex1af1d08d

452055181 has 4 divisors (see below), whose sum is σ = 452548000. Its totient is φ = 451562364.

The previous prime is 452055169. The next prime is 452055203. The reversal of 452055181 is 181550254.

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, and also an emirpimes, since its reverse is a distinct semiprime: 181550254 = 290775127.

It is a cyclic number.

It is not a de Polignac number, because 452055181 - 221 = 449958029 is a prime.

It is a super-2 number, since 2×4520551812 = 408707773337885522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452055151) 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, 245031 + ... + 246868.

It is an arithmetic number, because the mean of its divisors is an integer number (113137000).

Almost surely, 2452055181 is an apocalyptic number.

It is an amenable number.

452055181 is a deficient number, since it is larger than the sum of its proper divisors (492819).

452055181 is an equidigital number, since it uses as much as digits as its factorization.

452055181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492818.

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 452055181 is about 21261.5893338198. The cubic root of 452055181 is about 767.4742569006.

The spelling of 452055181 in words is "four hundred fifty-two million, fifty-five thousand, one hundred eighty-one".

Divisors: 1 919 491899 452055181