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83475188137 = 1166173114679
BaseRepresentation
bin100110110111110000…
…0100100100110101001
321222110112021220220201
41031233200210212221
52331424122010022
6102203054552201
76013410251305
oct1155740444651
9258415256821
1083475188137
11324466273a0
1214217808661
137b440c4a63
14407c518d05
152288629127
hex136f8249a9

83475188137 has 8 divisors (see below), whose sum is σ = 91066011840. Its totient is φ = 75884726160.

The previous prime is 83475188119. The next prime is 83475188143. The reversal of 83475188137 is 73188157438.

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 83475188137 - 235 = 49115449769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83475182137) 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, 670564 + ... + 785242.

It is an arithmetic number, because the mean of its divisors is an integer number (11383251480).

Almost surely, 283475188137 is an apocalyptic number.

It is an amenable number.

83475188137 is a deficient number, since it is larger than the sum of its proper divisors (7590823703).

83475188137 is a wasteful number, since it uses less digits than its factorization.

83475188137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180863.

The product of its digits is 4515840, while the sum is 55.

The spelling of 83475188137 in words is "eighty-three billion, four hundred seventy-five million, one hundred eighty-eight thousand, one hundred thirty-seven".

Divisors: 1 11 66173 114679 727903 1261469 7588653467 83475188137