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47231552443 = 71665233133
BaseRepresentation
bin101011111111001110…
…000100101110111011
311111220122111110112011
4223333032010232323
51233212234134233
633410424030351
73261304400035
oct537716045673
9144818443464
1047231552443
1119037a86469
1291a19023b7
1345b933c28a
142400ba0c55
1513667de0cd
hexaff384bbb

47231552443 has 4 divisors (see below), whose sum is σ = 47896785648. Its totient is φ = 46566319240.

The previous prime is 47231552429. The next prime is 47231552479. The reversal of 47231552443 is 34425513274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34425513274 = 217212756637.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47231552443 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47231552396 and 47231552405.

It is not an unprimeable number, because it can be changed into a prime (47231552413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332616496 + ... + 332616637.

It is an arithmetic number, because the mean of its divisors is an integer number (11974196412).

Almost surely, 247231552443 is an apocalyptic number.

47231552443 is a deficient number, since it is larger than the sum of its proper divisors (665233205).

47231552443 is an equidigital number, since it uses as much as digits as its factorization.

47231552443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665233204.

The product of its digits is 403200, while the sum is 40.

The spelling of 47231552443 in words is "forty-seven billion, two hundred thirty-one million, five hundred fifty-two thousand, four hundred forty-three".

Divisors: 1 71 665233133 47231552443