Search a number
-
+
47782049 = 76826007
BaseRepresentation
bin1011011001000…
…1100010100001
310022220120122112
42312101202201
544213011144
64424045105
71120066160
oct266214241
9108816575
1047782049
1124a763a7
1214003795
139b8ca03
1464bb3d7
1542dc99e
hex2d918a1

47782049 has 4 divisors (see below), whose sum is σ = 54608064. Its totient is φ = 40956036.

The previous prime is 47782013. The next prime is 47782051. The reversal of 47782049 is 94028774.

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 47782049 - 212 = 47777953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47781997 and 47782015.

It is not an unprimeable number, because it can be changed into a prime (47782069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3412997 + ... + 3413010.

It is an arithmetic number, because the mean of its divisors is an integer number (13652016).

Almost surely, 247782049 is an apocalyptic number.

It is an amenable number.

47782049 is a deficient number, since it is larger than the sum of its proper divisors (6826015).

47782049 is an equidigital number, since it uses as much as digits as its factorization.

47782049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6826014.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 47782049 is about 6912.4560758098. The cubic root of 47782049 is about 362.8732238473.

The spelling of 47782049 in words is "forty-seven million, seven hundred eighty-two thousand, forty-nine".

Divisors: 1 7 6826007 47782049