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203102000221 = 1929368606171
BaseRepresentation
bin1011110100100111010…
…0101001010001011101
3201102020112020121211111
42331021310221101131
511311423103001341
6233145340422021
720450025342301
oct2751164512135
9642215217744
10203102000221
117915386994a
1233442547911
13161c9b97773
149b8a079d01
15543a965681
hex2f49d2945d

203102000221 has 8 divisors (see below), whose sum is σ = 221163703200. Its totient is φ = 185777509680.

The previous prime is 203102000219. The next prime is 203102000281. The reversal of 203102000221 is 122000201302.

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 203102000221 - 21 = 203102000219 is a prime.

It is a super-3 number, since 3×2031020002213 (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203102000201) 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, 184302535 + ... + 184303636.

It is an arithmetic number, because the mean of its divisors is an integer number (27645462900).

Almost surely, 2203102000221 is an apocalyptic number.

It is an amenable number.

203102000221 is a deficient number, since it is larger than the sum of its proper divisors (18061702979).

203102000221 is a wasteful number, since it uses less digits than its factorization.

203102000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368606219.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 203102000221 its reverse (122000201302), we get a palindrome (325102201523).

The spelling of 203102000221 in words is "two hundred three billion, one hundred two million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 19 29 551 368606171 7003517249 10689578959 203102000221