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552322631 = 778903233
BaseRepresentation
bin100000111010111…
…100011001000111
31102111021220012202
4200322330121013
52112343311011
6130450105115
716454444030
oct4072743107
91374256182
10552322631
11263854193
12134b7b19b
138a574733
14534d5a87
153375123b
hex20ebc647

552322631 has 4 divisors (see below), whose sum is σ = 631225872. Its totient is φ = 473419392.

The previous prime is 552322601. The next prime is 552322633. The reversal of 552322631 is 136223255.

552322631 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-552322631 is a prime.

It is a super-2 number, since 2×5523226312 = 610120577429524322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 552322594 and 552322603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552322633) 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, 39451610 + ... + 39451623.

It is an arithmetic number, because the mean of its divisors is an integer number (157806468).

Almost surely, 2552322631 is an apocalyptic number.

552322631 is a deficient number, since it is larger than the sum of its proper divisors (78903241).

552322631 is an equidigital number, since it uses as much as digits as its factorization.

552322631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78903240.

The product of its digits is 10800, while the sum is 29.

The square root of 552322631 is about 23501.5452896187. The cubic root of 552322631 is about 820.4729727267.

Adding to 552322631 its reverse (136223255), we get a palindrome (688545886).

The spelling of 552322631 in words is "five hundred fifty-two million, three hundred twenty-two thousand, six hundred thirty-one".

Divisors: 1 7 78903233 552322631