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22213310 = 257317333
BaseRepresentation
bin101010010111…
…1001010111110
31112210112221012
41110233022332
521141311220
62112035222
7356544560
oct124571276
945715835
1022213310
11115a2209
127532b12
1347a9992
142d43330
151e3bac5
hex152f2be

22213310 has 16 divisors (see below), whose sum is σ = 45696096. Its totient is φ = 7615968.

The previous prime is 22213259. The next prime is 22213313. The reversal of 22213310 is 1331222.

It is a happy number.

It is a super-2 number, since 2×222133102 = 986862282312200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213313) 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, 158597 + ... + 158736.

It is an arithmetic number, because the mean of its divisors is an integer number (2856006).

Almost surely, 222213310 is an apocalyptic number.

22213310 is an abundant number, since it is smaller than the sum of its proper divisors (23482786).

22213310 is a wasteful number, since it uses less digits than its factorization.

22213310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317347.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22213310 is about 4713.0998291995. The cubic root of 22213310 is about 281.1066324450.

Adding to 22213310 its reverse (1331222), we get a palindrome (23544532).

The spelling of 22213310 in words is "twenty-two million, two hundred thirteen thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 35 70 317333 634666 1586665 2221331 3173330 4442662 11106655 22213310