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553330331 = 1719290163
BaseRepresentation
bin100000111110110…
…010011010011011
31102120012002111222
4200332302122123
52113123032311
6130523442255
716466141651
oct4076623233
91376162458
10553330331
112643822a4
1213538638b
138a8382c8
14536b8dd1
153389eadb
hex20fb269b

553330331 has 12 divisors (see below), whose sum is σ = 618344712. Its totient is φ = 493366464.

The previous prime is 553330303. The next prime is 553330357. The reversal of 553330331 is 133033355.

It is not a de Polignac number, because 553330331 - 210 = 553329307 is a prime.

It is a super-2 number, since 2×5533303312 = 612348910409139122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 553330331.

It is not an unprimeable number, because it can be changed into a prime (553330361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38945 + ... + 51218.

It is an arithmetic number, because the mean of its divisors is an integer number (51528726).

Almost surely, 2553330331 is an apocalyptic number.

553330331 is a deficient number, since it is larger than the sum of its proper divisors (65014381).

553330331 is a wasteful number, since it uses less digits than its factorization.

553330331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90218 (or 90199 counting only the distinct ones).

The product of its (nonzero) digits is 6075, while the sum is 26.

The square root of 553330331 is about 23522.9745355472. The cubic root of 553330331 is about 820.9716476298.

Adding to 553330331 its reverse (133033355), we get a palindrome (686363686).

The spelling of 553330331 in words is "five hundred fifty-three million, three hundred thirty thousand, three hundred thirty-one".

Divisors: 1 17 19 323 361 6137 90163 1532771 1713097 29122649 32548843 553330331