Search a number
-
+
47222069 = 67704807
BaseRepresentation
bin1011010000100…
…0110100110101
310021212010111112
42310020310311
544042101234
64404044405
71112244446
oct264106465
9107763445
1047222069
1124723704
1213993705
139a24b6b
1463b32cd
15422bace
hex2d08d35

47222069 has 4 divisors (see below), whose sum is σ = 47926944. Its totient is φ = 46517196.

The previous prime is 47222057. The next prime is 47222081. The reversal of 47222069 is 96022274.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96022274 = 248011137.

It is an interprime number because it is at equal distance from previous prime (47222057) and next prime (47222081).

It is a cyclic number.

It is not a de Polignac number, because 47222069 - 28 = 47221813 is a prime.

It is a super-2 number, since 2×472220692 = 4459847601281522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47222009) 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, 352337 + ... + 352470.

It is an arithmetic number, because the mean of its divisors is an integer number (11981736).

Almost surely, 247222069 is an apocalyptic number.

It is an amenable number.

47222069 is a deficient number, since it is larger than the sum of its proper divisors (704875).

47222069 is an equidigital number, since it uses as much as digits as its factorization.

47222069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704874.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 47222069 is about 6871.8315607995. The cubic root of 47222069 is about 361.4500899411.

The spelling of 47222069 in words is "forty-seven million, two hundred twenty-two thousand, sixty-nine".

Divisors: 1 67 704807 47222069