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83619054493 = 1347391734939
BaseRepresentation
bin100110111100000010…
…1011000001110011101
321222211120000002110021
41031320011120032131
52332222434220433
6102225234312141
76020105143612
oct1157005301635
9258746002407
1083619054493
113250a85a307
1214257a28651
137b67b56b90
144093688509
15229609622d
hex137815839d

83619054493 has 16 divisors (see below), whose sum is σ = 91993386240. Its totient is φ = 75523098816.

The previous prime is 83619054481. The next prime is 83619054503. The reversal of 83619054493 is 39445091638.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 83619054493 - 25 = 83619054461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83619054493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83619054433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2375818 + ... + 2410756.

It is an arithmetic number, because the mean of its divisors is an integer number (5749586640).

Almost surely, 283619054493 is an apocalyptic number.

It is an amenable number.

83619054493 is a deficient number, since it is larger than the sum of its proper divisors (8374331747).

83619054493 is a wasteful number, since it uses less digits than its factorization.

83619054493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38916.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 83619054493 in words is "eighty-three billion, six hundred nineteen million, fifty-four thousand, four hundred ninety-three".

Divisors: 1 13 47 611 3917 34939 50921 184099 454207 1642133 2393287 21347729 136856063 1779128819 6432234961 83619054493