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213564733 is a prime number
BaseRepresentation
bin11001011101010…
…11110100111101
3112212212012201221
430232223310331
5414133032413
633105233341
75202161464
oct1456536475
9485765657
10213564733
11aa608388
125b632851
1335326585
14205139db
1513b3868d
hexcbabd3d

213564733 has 2 divisors, whose sum is σ = 213564734. Its totient is φ = 213564732.

The previous prime is 213564707. The next prime is 213564739. The reversal of 213564733 is 337465312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213539769 + 24964 = 14613^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 213564733 - 225 = 180010301 is a prime.

It is a super-2 number, since 2×2135647332 = 91219790362722578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213564739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106782366 + 106782367.

It is an arithmetic number, because the mean of its divisors is an integer number (106782367).

Almost surely, 2213564733 is an apocalyptic number.

It is an amenable number.

213564733 is a deficient number, since it is larger than the sum of its proper divisors (1).

213564733 is an equidigital number, since it uses as much as digits as its factorization.

213564733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 34.

The square root of 213564733 is about 14613.8541459808. The cubic root of 213564733 is about 597.7365955518.

The spelling of 213564733 in words is "two hundred thirteen million, five hundred sixty-four thousand, seven hundred thirty-three".