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551141331 = 31383170263
BaseRepresentation
bin100000110110011…
…011111111010011
31102102001212202220
4200312123333103
52112043010311
6130404512123
716441424016
oct4066337723
91372055686
10551141331
11263117704
121346ab643
138a24cb40
14532a937d
15335bb206
hex20d9bfd3

551141331 has 16 divisors (see below), whose sum is σ = 800921856. Its totient is φ = 335075616.

The previous prime is 551141323. The next prime is 551141351. The reversal of 551141331 is 133141155.

It is not a de Polignac number, because 551141331 - 23 = 551141323 is a prime.

It is a super-2 number, since 2×5511413312 = 607513533472903122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551141351) 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, 81895 + ... + 88368.

It is an arithmetic number, because the mean of its divisors is an integer number (50057616).

Almost surely, 2551141331 is an apocalyptic number.

551141331 is a deficient number, since it is larger than the sum of its proper divisors (249780525).

551141331 is a wasteful number, since it uses less digits than its factorization.

551141331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170362.

The product of its digits is 900, while the sum is 24.

The square root of 551141331 is about 23476.3994471043. The cubic root of 551141331 is about 819.8876164641.

Adding to 551141331 its reverse (133141155), we get a palindrome (684282486).

The spelling of 551141331 in words is "five hundred fifty-one million, one hundred forty-one thousand, three hundred thirty-one".

Divisors: 1 3 13 39 83 249 1079 3237 170263 510789 2213419 6640257 14131829 42395487 183713777 551141331