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202102102102 = 2778912973559
BaseRepresentation
bin1011110000111000111…
…0010101100001010110
3201022122211202112110211
42330032032111201112
511302401114231402
6232502221240034
720413164344365
oct2741616254126
9638584675424
10202102102102
117879040566a
123320370301a
131609a994a84
149ad33577dc
1553ccca44d7
hex2f0e395856

202102102102 has 8 divisors (see below), whose sum is σ = 303192097200. Its totient is φ = 101038069704.

The previous prime is 202102102073. The next prime is 202102102109. The reversal of 202102102102 is 201201201202.

It is a happy number.

202102102102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102102109) 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, 6471202 + ... + 6502357.

It is an arithmetic number, because the mean of its divisors is an integer number (37899012150).

Almost surely, 2202102102102 is an apocalyptic number.

202102102102 is a deficient number, since it is larger than the sum of its proper divisors (101089995098).

202102102102 is a wasteful number, since it uses less digits than its factorization.

202102102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12981350.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202102102102 its reverse (201201201202), we get a palindrome (403303303304).

The spelling of 202102102102 in words is "two hundred two billion, one hundred two million, one hundred two thousand, one hundred two".

Divisors: 1 2 7789 15578 12973559 25947118 101051051051 202102102102