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47317009309 = 193180334481
BaseRepresentation
bin101100000100010100…
…000100001110011101
311112010121022010022021
4230010110010032131
51233401123244214
633423115420141
73263362641313
oct540424041635
9145117263267
1047317009309
1119081244479
129206454651
134600c6037b
14240c2880b3
15136e06e924
hexb0450439d

47317009309 has 8 divisors (see below), whose sum is σ = 51414068480. Its totient is φ = 43380619200.

The previous prime is 47317009283. The next prime is 47317009343. The reversal of 47317009309 is 90390071374.

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 47317009309 - 221 = 47314912157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47317009409) 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, 40166652 + ... + 40167829.

It is an arithmetic number, because the mean of its divisors is an integer number (6426758560).

Almost surely, 247317009309 is an apocalyptic number.

It is an amenable number.

47317009309 is a deficient number, since it is larger than the sum of its proper divisors (4097059171).

47317009309 is a wasteful number, since it uses less digits than its factorization.

47317009309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80334531.

The product of its (nonzero) digits is 142884, while the sum is 43.

The spelling of 47317009309 in words is "forty-seven billion, three hundred seventeen million, nine thousand, three hundred nine".

Divisors: 1 19 31 589 80334481 1526355139 2490368911 47317009309