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2320164457 = 134133712917
BaseRepresentation
bin1000101001001010…
…1110011001101001
312222200210120021221
42022102232121221
514222430230312
61022121102041
7111332033602
oct21222563151
95880716257
102320164457
11a90743996
12549027921
132ac8b53a0
141801dada9
15d8a56207
hex8a4ae669

2320164457 has 16 divisors (see below), whose sum is σ = 2567374992. Its totient is φ = 2083092480.

The previous prime is 2320164443. The next prime is 2320164493. The reversal of 2320164457 is 7544610232.

It can be written as a sum of positive squares in 8 ways, for example, as 682829161 + 1637335296 = 26131^2 + 40464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320164457 - 227 = 2185946729 is a prime.

It is a super-2 number, since 2×23201644572 = 10766326215052209698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2320164757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173163 + ... + 186079.

It is an arithmetic number, because the mean of its divisors is an integer number (160460937).

Almost surely, 22320164457 is an apocalyptic number.

It is an amenable number.

2320164457 is a deficient number, since it is larger than the sum of its proper divisors (247210535).

2320164457 is a wasteful number, since it uses less digits than its factorization.

2320164457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13308.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 2320164457 is about 48168.0854612263. The cubic root of 2320164457 is about 1323.8524692773.

Adding to 2320164457 its reverse (7544610232), we get a palindrome (9864774689).

The spelling of 2320164457 in words is "two billion, three hundred twenty million, one hundred sixty-four thousand, four hundred fifty-seven".

Divisors: 1 13 41 337 533 4381 12917 13817 167921 179621 529597 4353029 6884761 56589377 178474189 2320164457