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2102440143 = 32324771397
BaseRepresentation
bin111110101010000…
…1011000011001111
312102112010000200110
41331110023003033
513301211041033
6544342331103
7103046306046
oct17524130317
95375100613
102102440143
11989855441
124a8129a93
1327676372b
1415d32355d
15c489a363
hex7d50b0cf

2102440143 has 48 divisors (see below), whose sum is σ = 3042579456. Its totient is φ = 1290421440.

The previous prime is 2102440141. The next prime is 2102440211. The reversal of 2102440143 is 3410442012.

It is not a de Polignac number, because 2102440143 - 21 = 2102440141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102440141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5295621 + ... + 5296017.

It is an arithmetic number, because the mean of its divisors is an integer number (63387072).

Almost surely, 22102440143 is an apocalyptic number.

2102440143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2102440143 is a deficient number, since it is larger than the sum of its proper divisors (940139313).

2102440143 is a wasteful number, since it uses less digits than its factorization.

2102440143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2102440143 is about 45852.3733627824. The cubic root of 2102440143 is about 1281.0749724092.

Adding to 2102440143 its reverse (3410442012), we get a palindrome (5512882155).

The spelling of 2102440143 in words is "two billion, one hundred two million, four hundred forty thousand, one hundred forty-three".

Divisors: 1 3 23 47 69 71 141 213 397 529 1081 1191 1587 1633 3243 3337 4899 9131 10011 18659 24863 27393 28187 37559 55977 74589 76751 84561 112677 210013 230253 429157 630039 648301 1287471 1324789 1765273 1944903 3974367 5295819 9870611 14910923 29611833 30470147 44732769 91410441 700813381 2102440143