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1223302413 = 3407767471
BaseRepresentation
bin100100011101010…
…0001110100001101
310011020212012102210
41020322201310031
510001131134123
6321215341033
742212620224
oct11072416415
93136765383
101223302413
11578582233
122a1821779
13166592aa8
14b8677cbb
15725dee93
hex48ea1d0d

1223302413 has 4 divisors (see below), whose sum is σ = 1631069888. Its totient is φ = 815534940.

The previous prime is 1223302411. The next prime is 1223302427. The reversal of 1223302413 is 3142033221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3142033221 = 31047344407.

It is not a de Polignac number, because 1223302413 - 21 = 1223302411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223302413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223302411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203883733 + ... + 203883738.

It is an arithmetic number, because the mean of its divisors is an integer number (407767472).

Almost surely, 21223302413 is an apocalyptic number.

It is an amenable number.

1223302413 is a deficient number, since it is larger than the sum of its proper divisors (407767475).

1223302413 is an equidigital number, since it uses as much as digits as its factorization.

1223302413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407767474.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1223302413 is about 34975.7403495623. The cubic root of 1223302413 is about 1069.4929944347.

Adding to 1223302413 its reverse (3142033221), we get a palindrome (4365335634).

The spelling of 1223302413 in words is "one billion, two hundred twenty-three million, three hundred two thousand, four hundred thirteen".

Divisors: 1 3 407767471 1223302413