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5438629 = 7776947
BaseRepresentation
bin10100101111110010100101
3101020022101201
4110233302211
52343014004
6312322501
764141030
oct24576245
911208351
105438629
113085139
1219a3431
131185631
14a18017
157266a4
hex52fca5

5438629 has 4 divisors (see below), whose sum is σ = 6215584. Its totient is φ = 4661676.

The previous prime is 5438627. The next prime is 5438639. The reversal of 5438629 is 9268345.

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: 9268345 = 51853669.

It is a cyclic number.

It is not a de Polignac number, because 5438629 - 21 = 5438627 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5438627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388467 + ... + 388480.

It is an arithmetic number, because the mean of its divisors is an integer number (1553896).

Almost surely, 25438629 is an apocalyptic number.

It is an amenable number.

5438629 is a deficient number, since it is larger than the sum of its proper divisors (776955).

5438629 is an equidigital number, since it uses as much as digits as its factorization.

5438629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776954.

The product of its digits is 51840, while the sum is 37.

The square root of 5438629 is about 2332.0868337178. The cubic root of 5438629 is about 175.8584110041.

It can be divided in two parts, 54 and 38629, that added together give a palindrome (38683).

The spelling of 5438629 in words is "five million, four hundred thirty-eight thousand, six hundred twenty-nine".

Divisors: 1 7 776947 5438629