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13122338 = 28973721
BaseRepresentation
bin110010000011…
…101100100010
3220200200110112
4302003230202
511324403323
61145131322
7216352355
oct62035442
926620415
1013122338
117453009
124489b42
132945ac8
141a5829c
151243178
hexc83b22

13122338 has 8 divisors (see below), whose sum is σ = 19904940. Its totient is φ = 6487360.

The previous prime is 13122313. The next prime is 13122341. The reversal of 13122338 is 83322131.

It can be written as a sum of positive squares in 2 ways, for example, as 11992369 + 1129969 = 3463^2 + 1063^2 .

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

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, 36683 + ... + 37038.

Almost surely, 213122338 is an apocalyptic number.

13122338 is a deficient number, since it is larger than the sum of its proper divisors (6782602).

13122338 is an equidigital number, since it uses as much as digits as its factorization.

13122338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73812.

The product of its digits is 864, while the sum is 23.

The square root of 13122338 is about 3622.4767770132. The cubic root of 13122338 is about 235.8687506342.

Adding to 13122338 its reverse (83322131), we get a palindrome (96444469).

It can be divided in two parts, 13122 and 338, that multiplied together give a square (4435236 = 21062).

The spelling of 13122338 in words is "thirteen million, one hundred twenty-two thousand, three hundred thirty-eight".

Divisors: 1 2 89 178 73721 147442 6561169 13122338