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203100211213 = 1103184134371
BaseRepresentation
bin1011110100100110110…
…1110100100000001101
3201102020101212201202221
42331021231310200031
511311422123224323
6233145234215341
720450004211444
oct2751155644015
9642211781687
10203100211213
1179152857829
1233441a24551
13161c96bc393
149b89b31d5b
15543a71055d
hex2f49b7480d

203100211213 has 4 divisors (see below), whose sum is σ = 203284346688. Its totient is φ = 202916075740.

The previous prime is 203100211207. The next prime is 203100211231. The reversal of 203100211213 is 312112001302.

203100211213 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203100211213 - 29 = 203100210701 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 (203100211513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92066083 + ... + 92068288.

It is an arithmetic number, because the mean of its divisors is an integer number (50821086672).

Almost surely, 2203100211213 is an apocalyptic number.

It is an amenable number.

203100211213 is a deficient number, since it is larger than the sum of its proper divisors (184135475).

203100211213 is a wasteful number, since it uses less digits than its factorization.

203100211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184135474.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 203100211213 its reverse (312112001302), we get a palindrome (515212212515).

The spelling of 203100211213 in words is "two hundred three billion, one hundred million, two hundred eleven thousand, two hundred thirteen".

Divisors: 1 1103 184134371 203100211213