Search a number
-
+
30100223231 = 1310322479629
BaseRepresentation
bin11100000010000111…
…001111010011111111
32212200201212202210122
4130002013033103333
5443121124120411
621454452125155
72113624450601
oct340207172377
985621782718
1030100223231
1111846878251
125a006067bb
132ab90863a0
141657897171
15bb28249db
hex7021cf4ff

30100223231 has 8 divisors (see below), whose sum is σ = 32730341280. Its totient is φ = 27515064672.

The previous prime is 30100223203. The next prime is 30100223281. The reversal of 30100223231 is 13232200103.

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 30100223231 - 234 = 12920354047 is a prime.

It is a super-3 number, since 3×301002232313 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30100223281) 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, 11238476 + ... + 11241153.

It is an arithmetic number, because the mean of its divisors is an integer number (4091292660).

Almost surely, 230100223231 is an apocalyptic number.

30100223231 is a deficient number, since it is larger than the sum of its proper divisors (2630118049).

30100223231 is a wasteful number, since it uses less digits than its factorization.

30100223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22479745.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30100223231 its reverse (13232200103), we get a palindrome (43332423334).

The spelling of 30100223231 in words is "thirty billion, one hundred million, two hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 13 103 1339 22479629 292235177 2315401787 30100223231