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203223101313 = 3247249273979
BaseRepresentation
bin1011110101000100001…
…0100110111110000001
3201102112222010012022010
42331101002212332001
511312200103220223
6233205344203133
720453025600561
oct2752102467601
9642488105263
10203223101313
11792061629a1
12334770094a9
1316218cb890b
149b9c1a0da1
1554463d7393
hex2f510a6f81

203223101313 has 8 divisors (see below), whose sum is σ = 270966220000. Its totient is φ = 135481025088.

The previous prime is 203223101293. The next prime is 203223101327. The reversal of 203223101313 is 313101322302.

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

It is not a de Polignac number, because 203223101313 - 28 = 203223101057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203223101313.

It is not an unprimeable number, because it can be changed into a prime (203223100313) 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, 604758 + ... + 878736.

It is an arithmetic number, because the mean of its divisors is an integer number (33870777500).

Almost surely, 2203223101313 is an apocalyptic number.

It is an amenable number.

203223101313 is a deficient number, since it is larger than the sum of its proper divisors (67743118687).

203223101313 is a wasteful number, since it uses less digits than its factorization.

203223101313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521231.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 203223101313 its reverse (313101322302), we get a palindrome (516324423615).

The spelling of 203223101313 in words is "two hundred three billion, two hundred twenty-three million, one hundred one thousand, three hundred thirteen".

Divisors: 1 3 247249 273979 741747 821937 67741033771 203223101313