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12248819 = 111398011
BaseRepresentation
bin101110101110…
…011011110011
3212001022012222
4232232123303
511113430234
61114311255
7206053562
oct56563363
925038188
1012248819
116a067a0
12412852b
1326cb32b
1418abbd9
15111e42e
hexbae6f3

12248819 has 8 divisors (see below), whose sum is σ = 13460160. Its totient is φ = 11053800.

The previous prime is 12248809. The next prime is 12248827. The reversal of 12248819 is 91884221.

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

It is a cyclic number.

It is not a de Polignac number, because 12248819 - 220 = 11200243 is a prime.

It is a super-2 number, since 2×122488192 = 300067133789522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12248809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2477 + ... + 5534.

It is an arithmetic number, because the mean of its divisors is an integer number (1682520).

Almost surely, 212248819 is an apocalyptic number.

12248819 is a deficient number, since it is larger than the sum of its proper divisors (1211341).

12248819 is a wasteful number, since it uses less digits than its factorization.

12248819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8161.

The product of its digits is 9216, while the sum is 35.

The square root of 12248819 is about 3499.8312816477. The cubic root of 12248819 is about 230.5144063033.

The spelling of 12248819 in words is "twelve million, two hundred forty-eight thousand, eight hundred nineteen".

Divisors: 1 11 139 1529 8011 88121 1113529 12248819