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11274409 = 22749667
BaseRepresentation
bin101011000000…
…100010101001
3210012210120201
4223000202221
510341240114
61041352201
7164554666
oct53004251
923183521
1011274409
1164006a3
123938661
132449963
1416d6a6d
15eca874
hexac08a9

11274409 has 4 divisors (see below), whose sum is σ = 11324304. Its totient is φ = 11224516.

The previous prime is 11274397. The next prime is 11274427. The reversal of 11274409 is 90447211.

11274409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11274409 - 213 = 11266217 is a prime.

It is a super-2 number, since 2×112744092 = 254224596598562, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11274449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24607 + ... + 25060.

It is an arithmetic number, because the mean of its divisors is an integer number (2831076).

Almost surely, 211274409 is an apocalyptic number.

It is an amenable number.

11274409 is a deficient number, since it is larger than the sum of its proper divisors (49895).

11274409 is an equidigital number, since it uses as much as digits as its factorization.

11274409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49894.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 11274409 is about 3357.7386735718. The cubic root of 11274409 is about 224.2321745013.

The spelling of 11274409 in words is "eleven million, two hundred seventy-four thousand, four hundred nine".

Divisors: 1 227 49667 11274409