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47031247147 = 297873205991
BaseRepresentation
bin101011110011010001…
…111110000100101011
311111101200120220022111
4223303101332010223
51232304444402042
633334510503151
73253323001423
oct536321760453
9144350526274
1047031247147
1118a44a050a5
129146804ab7
1345869a9031
1423c233d483
151353e24517
hexaf347e12b

47031247147 has 8 divisors (see below), whose sum is σ = 48659430240. Its totient is φ = 45403491840.

The previous prime is 47031247139. The next prime is 47031247177. The reversal of 47031247147 is 74174213074.

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

It is a cyclic number.

It is not a de Polignac number, because 47031247147 - 23 = 47031247139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47031247117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125322 + ... + 331312.

It is an arithmetic number, because the mean of its divisors is an integer number (6082428780).

Almost surely, 247031247147 is an apocalyptic number.

47031247147 is a deficient number, since it is larger than the sum of its proper divisors (1628183093).

47031247147 is a wasteful number, since it uses less digits than its factorization.

47031247147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213893.

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 47031247147 in words is "forty-seven billion, thirty-one million, two hundred forty-seven thousand, one hundred forty-seven".

Divisors: 1 29 7873 205991 228317 5973739 1621767143 47031247147