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83871381100 = 22521364516447
BaseRepresentation
bin100111000011100011…
…1111011011001101100
322000111010210121111011
41032013013323121230
52333232033143400
6102310250435004
76026260655653
oct1160707733154
9260433717434
1083871381100
113262a231aa1
1214308432a64
137ba8202570
1440b8dac19a
1522ad2d98ba
hex13871fb66c

83871381100 has 36 divisors (see below), whose sum is σ = 196000969024. Its totient is φ = 30967894080.

The previous prime is 83871381089. The next prime is 83871381107. The reversal of 83871381100 is 118317838.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (83871381107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32256924 + ... + 32259523.

Almost surely, 283871381100 is an apocalyptic number.

It is an amenable number.

83871381100 is an abundant number, since it is smaller than the sum of its proper divisors (112129587924).

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

83871381100 is a wasteful number, since it uses less digits than its factorization.

83871381100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64516474 (or 64516467 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

Adding to 83871381100 its reverse (118317838), we get a palindrome (83989698938).

The spelling of 83871381100 in words is "eighty-three billion, eight hundred seventy-one million, three hundred eighty-one thousand, one hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 650 1300 64516447 129032894 258065788 322582235 645164470 838713811 1290328940 1612911175 1677427622 3225822350 3354855244 4193569055 6451644700 8387138110 16774276220 20967845275 41935690550 83871381100