Search a number
-
+
30200091 = 317358189
BaseRepresentation
bin111001100110…
…1000100011011
32002211022201220
41303031010123
530212400331
62555143123
7514460625
oct163150433
962738656
1030200091
1116057859
12a144aa3
13634509c
144021c15
1529b8296
hex1ccd11b

30200091 has 8 divisors (see below), whose sum is σ = 40500240. Its totient is φ = 20016672.

The previous prime is 30200083. The next prime is 30200099. The reversal of 30200091 is 19000203.

It is an interprime number because it is at equal distance from previous prime (30200083) and next prime (30200099).

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

It is not a de Polignac number, because 30200091 - 23 = 30200083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30200091.

It is not an unprimeable number, because it can be changed into a prime (30200099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28576 + ... + 29613.

It is an arithmetic number, because the mean of its divisors is an integer number (5062530).

Almost surely, 230200091 is an apocalyptic number.

30200091 is a deficient number, since it is larger than the sum of its proper divisors (10300149).

30200091 is a wasteful number, since it uses less digits than its factorization.

30200091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58365.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 30200091 is about 5495.4609451801. The cubic root of 30200091 is about 311.4125307168.

Adding to 30200091 its reverse (19000203), we get a palindrome (49200294).

The spelling of 30200091 in words is "thirty million, two hundred thousand, ninety-one".

Divisors: 1 3 173 519 58189 174567 10066697 30200091