Search a number
-
+
248284129 = 2087118967
BaseRepresentation
bin11101100110010…
…00001111100001
3122022012010210111
432303020033201
51002030043004
640345331321
76103244302
oct1663101741
9568163714
10248284129
111181715a5
126b196b41
133c5916b2
1424d907a9
1516be5a04
hexecc83e1

248284129 has 4 divisors (see below), whose sum is σ = 248405184. Its totient is φ = 248163076.

The previous prime is 248284121. The next prime is 248284187. The reversal of 248284129 is 921482842.

248284129 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 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 248284129 - 23 = 248284121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248284091 and 248284100.

It is not an unprimeable number, because it can be changed into a prime (248284121) 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, 57397 + ... + 61570.

It is an arithmetic number, because the mean of its divisors is an integer number (62101296).

Almost surely, 2248284129 is an apocalyptic number.

It is an amenable number.

248284129 is a deficient number, since it is larger than the sum of its proper divisors (121055).

248284129 is a wasteful number, since it uses less digits than its factorization.

248284129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121054.

The product of its digits is 73728, while the sum is 40.

The square root of 248284129 is about 15757.0342704457. The cubic root of 248284129 is about 628.5159736767.

The spelling of 248284129 in words is "two hundred forty-eight million, two hundred eighty-four thousand, one hundred twenty-nine".

Divisors: 1 2087 118967 248284129