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2164823497 = 21131332779
BaseRepresentation
bin1000000100001000…
…1001010111001001
312120212111102120001
42001002021113021
513413143322442
6554451403001
7104434460524
oct20102112711
95525442501
102164823497
11a10a93a31
12504bb3461
13286666465
14167721bbb
15ca0be2b7
hex810895c9

2164823497 has 8 divisors (see below), whose sum is σ = 2182099040. Its totient is φ = 2147614560.

The previous prime is 2164823489. The next prime is 2164823509. The reversal of 2164823497 is 7943284612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2164823497 - 23 = 2164823489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164823467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49654 + ... + 82432.

It is an arithmetic number, because the mean of its divisors is an integer number (272762380).

Almost surely, 22164823497 is an apocalyptic number.

It is an amenable number.

2164823497 is a deficient number, since it is larger than the sum of its proper divisors (17275543).

2164823497 is a wasteful number, since it uses less digits than its factorization.

2164823497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33303.

The product of its digits is 580608, while the sum is 46.

The square root of 2164823497 is about 46527.6637818836. The cubic root of 2164823497 is about 1293.6223124871.

The spelling of 2164823497 in words is "two billion, one hundred sixty-four million, eight hundred twenty-three thousand, four hundred ninety-seven".

Divisors: 1 211 313 32779 66043 6916369 10259827 2164823497