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213282741 = 3721450903
BaseRepresentation
bin11001011011001…
…10111110110101
3112212022212220210
430231212332311
5414100021431
633055220033
75166605400
oct1455467665
9485285823
10213282741
11aa435531
125b517619
1335258109
142047cd37
1513aced46
hexcb66fb5

213282741 has 12 divisors (see below), whose sum is σ = 330806112. Its totient is φ = 121875768.

The previous prime is 213282739. The next prime is 213282761. The reversal of 213282741 is 147282312.

It is not a de Polignac number, because 213282741 - 21 = 213282739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213282699 and 213282708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213282701) 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, 725305 + ... + 725598.

It is an arithmetic number, because the mean of its divisors is an integer number (27567176).

Almost surely, 2213282741 is an apocalyptic number.

213282741 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

213282741 is a deficient number, since it is larger than the sum of its proper divisors (117523371).

213282741 is a wasteful number, since it uses less digits than its factorization.

213282741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450920 (or 1450913 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 213282741 is about 14604.2028539732. The cubic root of 213282741 is about 597.4733948227.

The spelling of 213282741 in words is "two hundred thirteen million, two hundred eighty-two thousand, seven hundred forty-one".

Divisors: 1 3 7 21 49 147 1450903 4352709 10156321 30468963 71094247 213282741