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234345393 = 3416191787
BaseRepresentation
bin11011111011111…
…01001110110001
3121022221222110000
431331331032301
5434443023033
635130500213
75543621502
oct1575751661
9538858400
10234345393
11110311187
1266594669
1339721119
14231a2ba9
1515890a13
hexdf7d3b1

234345393 has 20 divisors (see below), whose sum is σ = 350483760. Its totient is φ = 156046392.

The previous prime is 234345379. The next prime is 234345407. The reversal of 234345393 is 393543432.

234345393 is a `hidden beast` number, since 234 + 34 + 5 + 393 = 666.

It is an interprime number because it is at equal distance from previous prime (234345379) and next prime (234345407).

It is not a de Polignac number, because 234345393 - 221 = 232248241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (234345343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 130246 + ... + 132032.

It is an arithmetic number, because the mean of its divisors is an integer number (17524188).

Almost surely, 2234345393 is an apocalyptic number.

It is an amenable number.

234345393 is a deficient number, since it is larger than the sum of its proper divisors (116138367).

234345393 is a wasteful number, since it uses less digits than its factorization.

234345393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418 (or 3409 counting only the distinct ones).

The product of its digits is 116640, while the sum is 36.

The square root of 234345393 is about 15308.3439012847. The cubic root of 234345393 is about 616.5270558393.

The spelling of 234345393 in words is "two hundred thirty-four million, three hundred forty-five thousand, three hundred ninety-three".

Divisors: 1 3 9 27 81 1619 1787 4857 5361 14571 16083 43713 48249 131139 144747 2893153 8679459 26038377 78115131 234345393