Search a number
-
+
2158752047 = 3736538863
BaseRepresentation
bin1000000010101011…
…1111000100101111
312120110001222002112
42000222333010233
513410120031142
6554113314235
7104332042514
oct20052770457
95513058075
102158752047
11a08617401
12502b6597b
1328531ba9a
141669c130b
15c97c0382
hex80abf12f

2158752047 has 8 divisors (see below), whose sum is σ = 2168098944. Its totient is φ = 2149424928.

The previous prime is 2158751989. The next prime is 2158752109. The reversal of 2158752047 is 7402578512.

2158752047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2158752047 - 224 = 2141974831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2158751995 and 2158752013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158752247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239138 + ... + 248000.

It is an arithmetic number, because the mean of its divisors is an integer number (271012368).

Almost surely, 22158752047 is an apocalyptic number.

2158752047 is a deficient number, since it is larger than the sum of its proper divisors (9346897).

2158752047 is an equidigital number, since it uses as much as digits as its factorization.

2158752047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9889.

The product of its (nonzero) digits is 156800, while the sum is 41.

The square root of 2158752047 is about 46462.3723780868. The cubic root of 2158752047 is about 1292.4118185384.

The spelling of 2158752047 in words is "two billion, one hundred fifty-eight million, seven hundred fifty-two thousand, forty-seven".

Divisors: 1 373 653 8863 243569 3305899 5787539 2158752047