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203100130223 = 1091863303947
BaseRepresentation
bin1011110100100110110…
…1100000101110101111
3201102020101201121200022
42331021231200232233
511311422113131343
6233145232352355
720450003423354
oct2751155405657
9642211647608
10203100130223
11791528019a1
12334419a56bb
13161c9691563
149b89b1062b
15543a6e6568
hex2f49b60baf

203100130223 has 4 divisors (see below), whose sum is σ = 204963434280. Its totient is φ = 201236826168.

The previous prime is 203100130201. The next prime is 203100130229. The reversal of 203100130223 is 322031001302.

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 203100130223 - 212 = 203100126127 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 (203100130229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931651865 + ... + 931652082.

It is an arithmetic number, because the mean of its divisors is an integer number (51240858570).

Almost surely, 2203100130223 is an apocalyptic number.

203100130223 is a deficient number, since it is larger than the sum of its proper divisors (1863304057).

203100130223 is a wasteful number, since it uses less digits than its factorization.

203100130223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863304056.

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

Adding to 203100130223 its reverse (322031001302), we get a palindrome (525131131525).

The spelling of 203100130223 in words is "two hundred three billion, one hundred million, one hundred thirty thousand, two hundred twenty-three".

Divisors: 1 109 1863303947 203100130223