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22222226 = 2133179349
BaseRepresentation
bin101010011000…
…1010110010010
31112211000011102
41110301112102
521142102401
62112144402
7356612555
oct124612622
945730142
1022222226
11115a8984
127538102
1347b0a60
142d4669c
151e3e56b
hex1531592

22222226 has 32 divisors (see below), whose sum is σ = 37632000. Its totient is φ = 9771840.

The previous prime is 22222223. The next prime is 22222253. The reversal of 22222226 is 62222222.

It is a Curzon number.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22222198 and 22222207.

It is not an unprimeable number, because it can be changed into a prime (22222223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63500 + ... + 63848.

It is an arithmetic number, because the mean of its divisors is an integer number (1176000).

Almost surely, 222222226 is an apocalyptic number.

22222226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22222226 is a deficient number, since it is larger than the sum of its proper divisors (15409774).

22222226 is a wasteful number, since it uses less digits than its factorization.

22222226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474.

The product of its digits is 768, while the sum is 20.

The square root of 22222226 is about 4714.0456086041. The cubic root of 22222226 is about 281.1442376988.

Adding to 22222226 its reverse (62222222), we get a palindrome (84444448).

The spelling of 22222226 in words is "twenty-two million, two hundred twenty-two thousand, two hundred twenty-six".

Divisors: 1 2 13 26 31 62 79 158 349 403 698 806 1027 2054 2449 4537 4898 9074 10819 21638 27571 31837 55142 63674 140647 281294 358423 716846 854701 1709402 11111113 22222226