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1223325213 = 31137070461
BaseRepresentation
bin100100011101010…
…0111011000011101
310011020220100201020
41020322213120131
510001132401323
6321220034353
742213043545
oct11072473035
93136810636
101223325213
11578598380
122a18329b9
131665a0296
14b8682325
15725e6ae3
hex48ea761d

1223325213 has 8 divisors (see below), whose sum is σ = 1779382176. Its totient is φ = 741409200.

The previous prime is 1223325211. The next prime is 1223325221. The reversal of 1223325213 is 3125233221.

It is a happy number.

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

It is not a de Polignac number, because 1223325213 - 21 = 1223325211 is a prime.

It is a super-2 number, since 2×12233252132 = 2993049153522990738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223325211) 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, 18535198 + ... + 18535263.

It is an arithmetic number, because the mean of its divisors is an integer number (222422772).

Almost surely, 21223325213 is an apocalyptic number.

It is an amenable number.

1223325213 is a deficient number, since it is larger than the sum of its proper divisors (556056963).

1223325213 is a wasteful number, since it uses less digits than its factorization.

1223325213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37070475.

The product of its digits is 2160, while the sum is 24.

The square root of 1223325213 is about 34976.0662882492. The cubic root of 1223325213 is about 1069.4996388230.

Adding to 1223325213 its reverse (3125233221), we get a palindrome (4348558434).

The spelling of 1223325213 in words is "one billion, two hundred twenty-three million, three hundred twenty-five thousand, two hundred thirteen".

Divisors: 1 3 11 33 37070461 111211383 407775071 1223325213