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11223287894 = 271361666417
BaseRepresentation
bin10100111001111010…
…11100100001010110
31001222011121002122102
422130331130201112
5140441130203034
65053402002102
7545060241650
oct123475344126
931864532572
1011223287894
11483a287345
1222127a6332
13109b276770
147867d56d0
1545a49897e
hex29cf5c856

11223287894 has 16 divisors (see below), whose sum is σ = 20719916448. Its totient is φ = 4439981952.

The previous prime is 11223287893. The next prime is 11223287923. The reversal of 11223287894 is 49878232211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223287891) 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, 30833027 + ... + 30833390.

It is an arithmetic number, because the mean of its divisors is an integer number (1294994778).

Almost surely, 211223287894 is an apocalyptic number.

11223287894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11223287894 is a deficient number, since it is larger than the sum of its proper divisors (9496628554).

11223287894 is a wasteful number, since it uses less digits than its factorization.

11223287894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61666439.

The product of its digits is 387072, while the sum is 47.

The spelling of 11223287894 in words is "eleven billion, two hundred twenty-three million, two hundred eighty-seven thousand, eight hundred ninety-four".

Divisors: 1 2 7 13 14 26 91 182 61666417 123332834 431664919 801663421 863329838 1603326842 5611643947 11223287894