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47272037 = 283167039
BaseRepresentation
bin1011010001010…
…1000001100101
310021221200001012
42310111001211
544100201122
64405112005
71112543231
oct264250145
9107850035
1047272037
11247581aa
12139b8605
139a41827
1463c75c1
15423b7e2
hex2d15065

47272037 has 4 divisors (see below), whose sum is σ = 47439360. Its totient is φ = 47104716.

The previous prime is 47272021. The next prime is 47272079. The reversal of 47272037 is 73027274.

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 47272037 - 24 = 47272021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47271994 and 47272012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47274037) 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, 83237 + ... + 83802.

It is an arithmetic number, because the mean of its divisors is an integer number (11859840).

Almost surely, 247272037 is an apocalyptic number.

It is an amenable number.

47272037 is a deficient number, since it is larger than the sum of its proper divisors (167323).

47272037 is a wasteful number, since it uses less digits than its factorization.

47272037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167322.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 47272037 is about 6875.4663114584. The cubic root of 47272037 is about 361.5775343884.

The spelling of 47272037 in words is "forty-seven million, two hundred seventy-two thousand, thirty-seven".

Divisors: 1 283 167039 47272037