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83204649901 = 295012820401
BaseRepresentation
bin100110101111101100…
…0100011001110101101
321221202200020011020001
41031133120203032231
52330400342244101
6102120152224301
76003613566142
oct1153730431655
9257680204201
1083204649901
1132317945a7a
121416109b091
137b00040c69
1440546143c9
15226e9d9901
hex135f6233ad

83204649901 has 4 divisors (see below), whose sum is σ = 83207499804. Its totient is φ = 83201800000.

The previous prime is 83204649889. The next prime is 83204649929. The reversal of 83204649901 is 10994640238.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10994640238 = 25497320119.

It can be written as a sum of positive squares in 2 ways, for example, as 48619809001 + 34584840900 = 220499^2 + 185970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-83204649901 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 (83204649001) 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, 1380700 + ... + 1439701.

It is an arithmetic number, because the mean of its divisors is an integer number (20801874951).

Almost surely, 283204649901 is an apocalyptic number.

It is an amenable number.

83204649901 is a deficient number, since it is larger than the sum of its proper divisors (2849903).

83204649901 is a wasteful number, since it uses less digits than its factorization.

83204649901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849902.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 83204649901 in words is "eighty-three billion, two hundred four million, six hundred forty-nine thousand, nine hundred one".

Divisors: 1 29501 2820401 83204649901