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634023061 = 790574723
BaseRepresentation
bin100101110010100…
…110110010010101
31122012000201010121
4211302212302111
52244302214221
6142525151541
721466051510
oct4562466225
91565021117
10634023061
112a5986a01
121583bb5b1
13a147ba99
14602c1d77
153a9dda41
hex25ca6c95

634023061 has 4 divisors (see below), whose sum is σ = 724597792. Its totient is φ = 543448332.

The previous prime is 634023059. The next prime is 634023073. The reversal of 634023061 is 160320436.

634023061 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 not a de Polignac number, because 634023061 - 21 = 634023059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634023011) 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, 45287355 + ... + 45287368.

It is an arithmetic number, because the mean of its divisors is an integer number (181149448).

Almost surely, 2634023061 is an apocalyptic number.

It is an amenable number.

634023061 is a deficient number, since it is larger than the sum of its proper divisors (90574731).

634023061 is an equidigital number, since it uses as much as digits as its factorization.

634023061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90574730.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 634023061 is about 25179.8145545197. The cubic root of 634023061 is about 859.0827885693.

Adding to 634023061 its reverse (160320436), we get a palindrome (794343497).

The spelling of 634023061 in words is "six hundred thirty-four million, twenty-three thousand, sixty-one".

Divisors: 1 7 90574723 634023061