[go: up one dir, main page]

Search a number
-
+
2148257 = 3758061
BaseRepresentation
bin1000001100011110100001
311001010212002
420030132201
51022221012
6114013345
724155066
oct10143641
94033762
102148257
111238021
12877255
135a2a77
143dcc6d
152c67c2
hex20c7a1

2148257 has 4 divisors (see below), whose sum is σ = 2206356. Its totient is φ = 2090160.

The previous prime is 2148241. The next prime is 2148287. The reversal of 2148257 is 7528412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1234321 + 913936 = 1111^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 2148257 - 24 = 2148241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148227) 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, 28994 + ... + 29067.

It is an arithmetic number, because the mean of its divisors is an integer number (551589).

22148257 is an apocalyptic number.

It is an amenable number.

2148257 is a deficient number, since it is larger than the sum of its proper divisors (58099).

2148257 is an equidigital number, since it uses as much as digits as its factorization.

2148257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58098.

The product of its digits is 4480, while the sum is 29.

The square root of 2148257 is about 1465.6933512846. The cubic root of 2148257 is about 129.0314007248.

The spelling of 2148257 in words is "two million, one hundred forty-eight thousand, two hundred fifty-seven".

Divisors: 1 37 58061 2148257