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47118890765 = 531397300149
BaseRepresentation
bin101011111000100000…
…010011011100001101
311111121210111122202102
4223320200103130031
51232444414001030
633351321204445
73255435651242
oct537040233415
9144553448672
1047118890765
1118a8a427041
129170030725
13459bbb456b
1423cdc355c9
15135b987c45
hexaf881370d

47118890765 has 8 divisors (see below), whose sum is σ = 56544658200. Its totient is φ = 37693786432.

The previous prime is 47118890719. The next prime is 47118890783. The reversal of 47118890765 is 56709881174.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9257903524 + 37860987241 = 96218^2 + 194579^2 .

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 47118890765 - 28 = 47118890509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47118890765.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6911 + ... + 307059.

It is an arithmetic number, because the mean of its divisors is an integer number (7068082275).

Almost surely, 247118890765 is an apocalyptic number.

It is an amenable number.

47118890765 is a deficient number, since it is larger than the sum of its proper divisors (9425767435).

47118890765 is a wasteful number, since it uses less digits than its factorization.

47118890765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331551.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 47118890765 in words is "forty-seven billion, one hundred eighteen million, eight hundred ninety thousand, seven hundred sixty-five".

Divisors: 1 5 31397 156985 300149 1500745 9423778153 47118890765