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47472447453 = 317930832303
BaseRepresentation
bin101100001101100101…
…000000111111011101
311112112102210012100120
4230031211000333131
51234210421304303
633450351145153
73300261100614
oct541545007735
9145472705316
1047472447453
1119150a60452
12924a5151b9
1346272145c2
142424b8a87b
15137ca25553
hexb0d940fdd

47472447453 has 8 divisors (see below), whose sum is σ = 67019925888. Its totient is φ = 29786633664.

The previous prime is 47472447443. The next prime is 47472447457. The reversal of 47472447453 is 35474427474.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47472447453 - 24 = 47472447437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 930832303 = 47472447453 / (4 + 7 + 4 + 7 + 2 + 4 + 4 + 7 + 4 + 5 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 47472447396 and 47472447405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47472447457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465416101 + ... + 465416202.

It is an arithmetic number, because the mean of its divisors is an integer number (8377490736).

Almost surely, 247472447453 is an apocalyptic number.

It is an amenable number.

47472447453 is a deficient number, since it is larger than the sum of its proper divisors (19547478435).

47472447453 is a wasteful number, since it uses less digits than its factorization.

47472447453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930832323.

The product of its digits is 10536960, while the sum is 51.

The spelling of 47472447453 in words is "forty-seven billion, four hundred seventy-two million, four hundred forty-seven thousand, four hundred fifty-three".

Divisors: 1 3 17 51 930832303 2792496909 15824149151 47472447453