Search a number
-
+
83055101 = 292863969
BaseRepresentation
bin1001111001101…
…01000111111101
312210021122011212
410330311013331
5132230230401
612124054205
72025646103
oct474650775
9183248155
1083055101
1142978588
1223994365
131428cb3c
14b05dc73
157458dbb
hex4f351fd

83055101 has 4 divisors (see below), whose sum is σ = 85919100. Its totient is φ = 80191104.

The previous prime is 83055097. The next prime is 83055103. The reversal of 83055101 is 10155038.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10155038 = 25077519.

It can be written as a sum of positive squares in 2 ways, for example, as 45832900 + 37222201 = 6770^2 + 6101^2 .

It is a cyclic number.

It is not a de Polignac number, because 83055101 - 22 = 83055097 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 (83055103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1431956 + ... + 1432013.

It is an arithmetic number, because the mean of its divisors is an integer number (21479775).

Almost surely, 283055101 is an apocalyptic number.

It is an amenable number.

83055101 is a deficient number, since it is larger than the sum of its proper divisors (2863999).

83055101 is a wasteful number, since it uses less digits than its factorization.

83055101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863998.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 83055101 is about 9113.4571376619. The cubic root of 83055101 is about 436.3035736868.

The spelling of 83055101 in words is "eighty-three million, fifty-five thousand, one hundred one".

Divisors: 1 29 2863969 83055101