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83831386051 = 717704465429
BaseRepresentation
bin100111000010010111…
…1010110111111000011
322000101100112122121001
41032010233112333003
52333141313323201
6102302301312431
76025264011220
oct1160457267703
9260340478531
1083831386051
11326096a5136
12142b6b65717
137b9cb3b05a
1440b395a947
1522a9a39301
hex1384bd6fc3

83831386051 has 8 divisors (see below), whose sum is σ = 101443021920. Its totient is φ = 67628681088.

The previous prime is 83831386043. The next prime is 83831386063. The reversal of 83831386051 is 15068313838.

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 83831386051 - 23 = 83831386043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83831385992 and 83831386010.

It is not an unprimeable number, because it can be changed into a prime (83831386451) 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, 352232596 + ... + 352232833.

It is an arithmetic number, because the mean of its divisors is an integer number (12680377740).

Almost surely, 283831386051 is an apocalyptic number.

83831386051 is a deficient number, since it is larger than the sum of its proper divisors (17611635869).

83831386051 is a wasteful number, since it uses less digits than its factorization.

83831386051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704465453.

The product of its (nonzero) digits is 414720, while the sum is 46.

Adding to 83831386051 its reverse (15068313838), we get a palindrome (98899699889).

The spelling of 83831386051 in words is "eighty-three billion, eight hundred thirty-one million, three hundred eighty-six thousand, fifty-one".

Divisors: 1 7 17 119 704465429 4931258003 11975912293 83831386051