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83824721311 = 1394391137339
BaseRepresentation
bin100111000010001010…
…1111011110110011111
322000100220000001021211
41032010111323312133
52333133112040221
6102301502405251
76025153242412
oct1160425736637
9260326001254
1083824721311
1132605962891
12142b4890827
137b9b646616
1440b2b03b79
1522a916e6e1
hex138457bd9f

83824721311 has 8 divisors (see below), whose sum is σ = 84447619200. Its totient is φ = 83202107160.

The previous prime is 83824721293. The next prime is 83824721317. The reversal of 83824721311 is 11312742838.

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 83824721311 - 215 = 83824688543 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 (83824721317) 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, 541680 + ... + 679018.

It is an arithmetic number, because the mean of its divisors is an integer number (10555952400).

Almost surely, 283824721311 is an apocalyptic number.

83824721311 is a deficient number, since it is larger than the sum of its proper divisors (622897889).

83824721311 is a wasteful number, since it uses less digits than its factorization.

83824721311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141869.

The product of its digits is 64512, while the sum is 40.

The spelling of 83824721311 in words is "eighty-three billion, eight hundred twenty-four million, seven hundred twenty-one thousand, three hundred eleven".

Divisors: 1 139 4391 137339 610349 19090121 603055549 83824721311