Search a number
-
+
3664054891 = 7523436413
BaseRepresentation
bin1101101001100101…
…0000101001101011
3100110100120021101201
43122121100221223
530000444224031
61403325225031
7156540644530
oct33231205153
910410507351
103664054891
111610299742
12863102177
13465149923
1426a8a4d87
15166a15d61
hexda650a6b

3664054891 has 4 divisors (see below), whose sum is σ = 4187491312. Its totient is φ = 3140618472.

The previous prime is 3664054861. The next prime is 3664054921. The reversal of 3664054891 is 1984504663.

3664054891 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.

It is an interprime number because it is at equal distance from previous prime (3664054861) and next prime (3664054921).

It is a cyclic number.

It is not a de Polignac number, because 3664054891 - 213 = 3664046699 is a prime.

It is a super-2 number, since 2×36640548912 = 26850596488522043762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3664054841) 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, 261718200 + ... + 261718213.

It is an arithmetic number, because the mean of its divisors is an integer number (1046872828).

Almost surely, 23664054891 is an apocalyptic number.

3664054891 is a deficient number, since it is larger than the sum of its proper divisors (523436421).

3664054891 is an equidigital number, since it uses as much as digits as its factorization.

3664054891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523436420.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 3664054891 is about 60531.4372124105. The cubic root of 3664054891 is about 1541.6554541550.

The spelling of 3664054891 in words is "three billion, six hundred sixty-four million, fifty-four thousand, eight hundred ninety-one".

Divisors: 1 7 523436413 3664054891