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213612413 = 7231140627
BaseRepresentation
bin11001011101101…
…11011101111101
3112212221122010212
430232313131331
5414141044123
633110242205
75202450500
oct1456673575
9485848125
10213612413
11aa640193
125b656365
13353421a1
1420527137
1513b47878
hexcbb777d

213612413 has 12 divisors (see below), whose sum is σ = 256505472. Its totient is φ = 177188760.

The previous prime is 213612403. The next prime is 213612439. The reversal of 213612413 is 314216312.

It is not a de Polignac number, because 213612413 - 24 = 213612397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213612403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68795 + ... + 71832.

It is an arithmetic number, because the mean of its divisors is an integer number (21375456).

Almost surely, 2213612413 is an apocalyptic number.

It is an amenable number.

213612413 is a deficient number, since it is larger than the sum of its proper divisors (42893059).

213612413 is a wasteful number, since it uses less digits than its factorization.

213612413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140672 (or 140665 counting only the distinct ones).

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

The square root of 213612413 is about 14615.4853836607. The cubic root of 213612413 is about 597.7810753680.

Adding to 213612413 its reverse (314216312), we get a palindrome (527828725).

The spelling of 213612413 in words is "two hundred thirteen million, six hundred twelve thousand, four hundred thirteen".

Divisors: 1 7 31 49 217 1519 140627 984389 4359437 6890723 30516059 213612413