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552444431 = 7118386441
BaseRepresentation
bin100000111011011…
…010001000001111
31102111112002021212
4200323122020033
52112411210211
6130452445035
716455462110
oct4073321017
91374462255
10552444431
11263927750
1213501977b
138a5b7cc6
1453528207
153377738b
hex20eda20f

552444431 has 16 divisors (see below), whose sum is σ = 697068288. Its totient is φ = 425284800.

The previous prime is 552444419. The next prime is 552444463. The reversal of 552444431 is 134444255.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-552444431 is a prime.

It is a super-2 number, since 2×5524444312 = 610389698685827522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552444401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36830 + ... + 49611.

It is an arithmetic number, because the mean of its divisors is an integer number (43566768).

Almost surely, 2552444431 is an apocalyptic number.

552444431 is a deficient number, since it is larger than the sum of its proper divisors (144623857).

552444431 is a wasteful number, since it uses less digits than its factorization.

552444431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86542.

The product of its digits is 38400, while the sum is 32.

The square root of 552444431 is about 23504.1364657373. The cubic root of 552444431 is about 820.5332794252.

Adding to 552444431 its reverse (134444255), we get a palindrome (686888686).

The spelling of 552444431 in words is "five hundred fifty-two million, four hundred forty-four thousand, four hundred thirty-one".

Divisors: 1 7 11 77 83 581 913 6391 86441 605087 950851 6655957 7174603 50222221 78920633 552444431