Search a number
-
+
246420047 = 298497243
BaseRepresentation
bin11101011000000…
…01001001001111
3122011200102202102
432230001021033
51001040420142
640241345315
76051351536
oct1654011117
9564612672
10246420047
11117109035
126a63823b
133c08b0a3
1424a2731d
1516978532
hexeb0124f

246420047 has 4 divisors (see below), whose sum is σ = 254917320. Its totient is φ = 237922776.

The previous prime is 246420019. The next prime is 246420067. The reversal of 246420047 is 740024642.

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

It is a cyclic number.

It is not a de Polignac number, because 246420047 - 26 = 246419983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 8497243 = 246420047 / (2 + 4 + 6 + 4 + 2 + 0 + 0 + 4 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (246420007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4248593 + ... + 4248650.

It is an arithmetic number, because the mean of its divisors is an integer number (63729330).

Almost surely, 2246420047 is an apocalyptic number.

246420047 is a deficient number, since it is larger than the sum of its proper divisors (8497273).

246420047 is an equidigital number, since it uses as much as digits as its factorization.

246420047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8497272.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 246420047 is about 15697.7720393692. The cubic root of 246420047 is about 626.9390844739.

Adding to 246420047 its reverse (740024642), we get a palindrome (986444689).

The spelling of 246420047 in words is "two hundred forty-six million, four hundred twenty thousand, forty-seven".

Divisors: 1 29 8497243 246420047