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248889371 = 2310821277
BaseRepresentation
bin11101101010111…
…00000000011011
3122100022220000212
432311130000123
51002203424441
640410321335
76111344663
oct1665340033
9570286025
10248889371
111185452a5
126b42924b
133c744023
14250ab1a3
1516cb4eeb
hexed5c01b

248889371 has 4 divisors (see below), whose sum is σ = 259710672. Its totient is φ = 238068072.

The previous prime is 248889331. The next prime is 248889409. The reversal of 248889371 is 173988842.

248889371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173988842 = 286994421.

It is a cyclic number.

It is not a de Polignac number, because 248889371 - 26 = 248889307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248889331) 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, 5410616 + ... + 5410661.

It is an arithmetic number, because the mean of its divisors is an integer number (64927668).

Almost surely, 2248889371 is an apocalyptic number.

248889371 is a deficient number, since it is larger than the sum of its proper divisors (10821301).

248889371 is a wasteful number, since it uses less digits than its factorization.

248889371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10821300.

The product of its digits is 774144, while the sum is 50.

The square root of 248889371 is about 15776.2280346095. The cubic root of 248889371 is about 629.0262701942.

The spelling of 248889371 in words is "two hundred forty-eight million, eight hundred eighty-nine thousand, three hundred seventy-one".

Divisors: 1 23 10821277 248889371