Search a number
-
+
212454041 = 1131718773
BaseRepresentation
bin11001010100111…
…00101010011001
3112210202210011012
430222130222121
5413342012131
633025343305
75156554352
oct1452345231
9483683135
10212454041
11a9a19958
125b197b35
1335027b67
1420304d29
15139b952b
hexca9ca99

212454041 has 4 divisors (see below), whose sum is σ = 212484132. Its totient is φ = 212423952.

The previous prime is 212454023. The next prime is 212454113. The reversal of 212454041 is 140454212.

212454041 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 210366016 + 2088025 = 14504^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 212454041 - 218 = 212191897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212453998 and 212454016.

It is not an unprimeable number, because it can be changed into a prime (212354041) 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, 1931 + ... + 20703.

It is an arithmetic number, because the mean of its divisors is an integer number (53121033).

Almost surely, 2212454041 is an apocalyptic number.

It is an amenable number.

212454041 is a deficient number, since it is larger than the sum of its proper divisors (30091).

212454041 is a wasteful number, since it uses less digits than its factorization.

212454041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30090.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 212454041 is about 14575.8032711751. The cubic root of 212454041 is about 596.6985722391.

It can be divided in two parts, 2124 and 54041, that added together give a palindrome (56165).

The spelling of 212454041 in words is "two hundred twelve million, four hundred fifty-four thousand, forty-one".

Divisors: 1 11317 18773 212454041