Search a number
-
+
47239531440768 = 2733173131183399
BaseRepresentation
bin10101011110110110011110…
…11111011010101010000000
320012021001111011112221021000
422233123033133122222000
522142433030022101033
6244245312515532000
712643641425003652
oct1257331737325200
9205231434487230
1047239531440768
1114063199a6a117
12536b4075ba000
13204889019a414
14b94596a706d2
1556dc1e16ea13
hex2af6cf7daa80

47239531440768 has 512 divisors, whose sum is σ = 152877404160000. Its totient is φ = 14295885004800.

The previous prime is 47239531440743. The next prime is 47239531440823. The reversal of 47239531440768 is 86704413593274.

47239531440768 is a `hidden beast` number, since 4 + 7 + 2 + 3 + 95 + 31 + 440 + 76 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 566386333 + ... + 566469731.

It is an arithmetic number, because the mean of its divisors is an integer number (298588680000).

It is a 2-persistent number, because it is pandigital, and so is 2⋅47239531440768 = 94479062881536, but 3⋅47239531440768 = 141718594322304 is not.

Almost surely, 247239531440768 is an apocalyptic number.

47239531440768 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47239531440768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76438702080000).

47239531440768 is an abundant number, since it is smaller than the sum of its proper divisors (105637872719232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47239531440768 is a wasteful number, since it uses less digits than its factorization.

47239531440768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83781 (or 83763 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 63.

The spelling of 47239531440768 in words is "forty-seven trillion, two hundred thirty-nine billion, five hundred thirty-one million, four hundred forty thousand, seven hundred sixty-eight".