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551104450 = 25213847853
BaseRepresentation
bin100000110110010…
…010111111000010
31102102000000011221
4200312102333002
52112040320300
6130404025254
716441211341
oct4066227702
91372000157
10551104450
112630a1a26
1213469222a
138a239110
1453299b58
15335b031a
hex20d92fc2

551104450 has 24 divisors (see below), whose sum is σ = 1103905908. Its totient is φ = 203484480.

The previous prime is 551104447. The next prime is 551104459. The reversal of 551104450 is 54401155.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 46607929 + 504496521 = 6827^2 + 22461^2 .

It is a super-2 number, since 2×5511044502 = 607432229619605000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (551104459) 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, 423277 + ... + 424576.

Almost surely, 2551104450 is an apocalyptic number.

551104450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551104450 is an abundant number, since it is smaller than the sum of its proper divisors (552801458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551104450 is a wasteful number, since it uses less digits than its factorization.

551104450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847878 (or 847873 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 551104450 is about 23475.6139429835. The cubic root of 551104450 is about 819.8693277797.

The spelling of 551104450 in words is "five hundred fifty-one million, one hundred four thousand, four hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 847853 1695706 4239265 8478530 11022089 21196325 22044178 42392650 55110445 110220890 275552225 551104450