Search a number
-
+
10030121131 = 13773212563
BaseRepresentation
bin10010101011101011…
…11000000010101011
3221220000102221112211
421111311320002223
5131020202334011
64335140145551
7503361423442
oct112565700253
927800387484
1010030121131
114287818508
121b3b0982b7
13c3b005624
146b2163d59
153da85cb21
hex255d780ab

10030121131 has 4 divisors (see below), whose sum is σ = 10103333832. Its totient is φ = 9956908432.

The previous prime is 10030121113. The next prime is 10030121183. The reversal of 10030121131 is 13112103001.

10030121131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10030121131 - 25 = 10030121099 is a prime.

It is a super-2 number, since 2×100301211312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10030121111) 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, 36606145 + ... + 36606418.

It is an arithmetic number, because the mean of its divisors is an integer number (2525833458).

Almost surely, 210030121131 is an apocalyptic number.

10030121131 is a deficient number, since it is larger than the sum of its proper divisors (73212701).

10030121131 is an equidigital number, since it uses as much as digits as its factorization.

10030121131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73212700.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10030121131 its reverse (13112103001), we get a palindrome (23142224132).

The spelling of 10030121131 in words is "ten billion, thirty million, one hundred twenty-one thousand, one hundred thirty-one".

Divisors: 1 137 73212563 10030121131