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2164730801 = 11807183343
BaseRepresentation
bin1000000100000111…
…0010101110110001
312120212022201101212
42001001302232301
513413132341201
6554445405505
7104433623342
oct20101625661
95525281355
102164730801
11a10a30322
12504b69895
132866331cc
141676da0c9
15ca0a1abb
hex81072bb1

2164730801 has 4 divisors (see below), whose sum is σ = 2164925952. Its totient is φ = 2164535652.

The previous prime is 2164730773. The next prime is 2164730807. The reversal of 2164730801 is 1080374612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2164730801 - 226 = 2097621937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164730807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79865 + ... + 103478.

It is an arithmetic number, because the mean of its divisors is an integer number (541231488).

Almost surely, 22164730801 is an apocalyptic number.

It is an amenable number.

2164730801 is a deficient number, since it is larger than the sum of its proper divisors (195151).

2164730801 is a wasteful number, since it uses less digits than its factorization.

2164730801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195150.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2164730801 is about 46526.6676326599. The cubic root of 2164730801 is about 1293.6038482681.

The spelling of 2164730801 in words is "two billion, one hundred sixty-four million, seven hundred thirty thousand, eight hundred one".

Divisors: 1 11807 183343 2164730801