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13023222 = 232170537
BaseRepresentation
bin110001101011…
…011111110110
3220111122111120
4301223133312
511313220342
61143044410
7215460402
oct61533766
926448446
1013023222
1173955a3
124440706
13290c964
141a30102
151223aec
hexc6b7f6

13023222 has 8 divisors (see below), whose sum is σ = 26046456. Its totient is φ = 4341072.

The previous prime is 13023203. The next prime is 13023251. The reversal of 13023222 is 22232031.

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

13023222 is an admirable number.

It is a super-2 number, since 2×130232222 = 339208622522568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085263 + ... + 1085274.

It is an arithmetic number, because the mean of its divisors is an integer number (3255807).

Almost surely, 213023222 is an apocalyptic number.

13023222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13023222 is a wasteful number, since it uses less digits than its factorization.

13023222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170542.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 13023222 is about 3608.7701506192. The cubic root of 13023222 is about 235.2733923976.

Adding to 13023222 its reverse (22232031), we get a palindrome (35255253).

The spelling of 13023222 in words is "thirteen million, twenty-three thousand, two hundred twenty-two".

Divisors: 1 2 3 6 2170537 4341074 6511611 13023222