Search a number
-
+
2159587093 = 2393895091
BaseRepresentation
bin1000000010111000…
…1010111100010101
312120111122101120011
42000232022330111
513410323241333
6554143240221
7104342121166
oct20056127425
95514571504
102159587093
11a09037824
125032a9071
13285551bb1
14166b5b76d
15c98d79cd
hex80b8af15

2159587093 has 4 divisors (see below), whose sum is σ = 2253482208. Its totient is φ = 2065691980.

The previous prime is 2159587039. The next prime is 2159587147. The reversal of 2159587093 is 3907859512.

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 an interprime number because it is at equal distance from previous prime (2159587039) and next prime (2159587147).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2159587093 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159587013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46947523 + ... + 46947568.

It is an arithmetic number, because the mean of its divisors is an integer number (563370552).

Almost surely, 22159587093 is an apocalyptic number.

2159587093 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2159587093 is a deficient number, since it is larger than the sum of its proper divisors (93895115).

2159587093 is an equidigital number, since it uses as much as digits as its factorization.

2159587093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93895114.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 2159587093 is about 46471.3577701362. The cubic root of 2159587093 is about 1292.5784401437.

The spelling of 2159587093 in words is "two billion, one hundred fifty-nine million, five hundred eighty-seven thousand, ninety-three".

Divisors: 1 23 93895091 2159587093