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83885632823 = 173484888051
BaseRepresentation
bin100111000011111111…
…0010010110100110111
322000112010121200011202
41032013332102310313
52333244210222243
6102311520123115
76026523054116
oct1160776226467
9260463550152
1083885632823
1132637286583
121431116649b
137bab152435
1440bac3bc7d
1522ae6a24b8
hex1387f92d37

83885632823 has 4 divisors (see below), whose sum is σ = 84370521048. Its totient is φ = 83400744600.

The previous prime is 83885632819. The next prime is 83885632837. The reversal of 83885632823 is 32823658838.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32823658838 = 216411829419.

It is a cyclic number.

It is not a de Polignac number, because 83885632823 - 22 = 83885632819 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 (83885662823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242443853 + ... + 242444198.

It is an arithmetic number, because the mean of its divisors is an integer number (21092630262).

Almost surely, 283885632823 is an apocalyptic number.

83885632823 is a deficient number, since it is larger than the sum of its proper divisors (484888225).

83885632823 is a wasteful number, since it uses less digits than its factorization.

83885632823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484888224.

The product of its digits is 13271040, while the sum is 56.

The spelling of 83885632823 in words is "eighty-three billion, eight hundred eighty-five million, six hundred thirty-two thousand, eight hundred twenty-three".

Divisors: 1 173 484888051 83885632823