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83080900205 = 524376818293
BaseRepresentation
bin100110101100000000…
…0011110111001101101
321221110001101000112222
41031120000132321231
52330122202301310
6102100012005125
76000551666642
oct1153000367155
9257401330488
1083080900205
1132264002aa6
12141277607a5
137ab05033a4
144041ddddc9
152263be3055
hex135801ee6d

83080900205 has 8 divisors (see below), whose sum is σ = 99738004632. Its totient is φ = 66437437248.

The previous prime is 83080900163. The next prime is 83080900207. The reversal of 83080900205 is 50200908038.

It can be written as a sum of positive squares in 4 ways, for example, as 38300838436 + 44780061769 = 195706^2 + 211613^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-83080900205 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 (83080900207) 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, 3396962 + ... + 3421331.

It is an arithmetic number, because the mean of its divisors is an integer number (12467250579).

Almost surely, 283080900205 is an apocalyptic number.

It is an amenable number.

83080900205 is a deficient number, since it is larger than the sum of its proper divisors (16657104427).

83080900205 is a wasteful number, since it uses less digits than its factorization.

83080900205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820735.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 83080900205 in words is "eighty-three billion, eighty million, nine hundred thousand, two hundred five".

Divisors: 1 5 2437 12185 6818293 34091465 16616180041 83080900205