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11285530 = 251128553
BaseRepresentation
bin101011000011…
…010000011010
3210020100211121
4223003100122
510342114110
61041515454
7164632264
oct53032032
923210747
1011285530
116408a93
123942b8a
132451a39
1416dab34
15ecdcda
hexac341a

11285530 has 8 divisors (see below), whose sum is σ = 20313972. Its totient is φ = 4514208.

The previous prime is 11285513. The next prime is 11285551. The reversal of 11285530 is 3558211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10936249 + 349281 = 3307^2 + 591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11285495 and 11285504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564267 + ... + 564286.

Almost surely, 211285530 is an apocalyptic number.

11285530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11285530 is a deficient number, since it is larger than the sum of its proper divisors (9028442).

11285530 is a wasteful number, since it uses less digits than its factorization.

11285530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128560.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 11285530 is about 3359.3942906423. The cubic root of 11285530 is about 224.3058773015.

The spelling of 11285530 in words is "eleven million, two hundred eighty-five thousand, five hundred thirty".

Divisors: 1 2 5 10 1128553 2257106 5642765 11285530