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47805109789 = 1073471287541
BaseRepresentation
bin101100100001011010…
…000001011000011101
311120101121202012021211
4230201122001120131
51240401102003124
633543353224421
73311440504633
oct544132013035
9146347665254
1047805109789
11193018135a8
129321a02111
13467b10a118
142457023353
15139bd36e94
hexb2168161d

47805109789 has 8 divisors (see below), whose sum is σ = 48390978528. Its totient is φ = 47221817040.

The previous prime is 47805109753. The next prime is 47805109799. The reversal of 47805109789 is 98790150874.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47805109789 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 (47805109799) 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, 606642 + ... + 680899.

It is an arithmetic number, because the mean of its divisors is an integer number (6048872316).

Almost surely, 247805109789 is an apocalyptic number.

It is an amenable number.

47805109789 is a deficient number, since it is larger than the sum of its proper divisors (585868739).

47805109789 is a wasteful number, since it uses less digits than its factorization.

47805109789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287995.

The product of its (nonzero) digits is 5080320, while the sum is 58.

The spelling of 47805109789 in words is "forty-seven billion, eight hundred five million, one hundred nine thousand, seven hundred eighty-nine".

Divisors: 1 107 347 37129 1287541 137766887 446776727 47805109789