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2103982915 = 52918180167
BaseRepresentation
bin111110101101000…
…0011101101000011
312102122000101222011
41331122003231003
513302104423130
6544435353351
7103065362656
oct17532035503
95378011864
102103982915
1198a709561
124a8752857
13276b83a08
1415d60589d
15c4aa252a
hex7d683b43

2103982915 has 16 divisors (see below), whose sum is σ = 2626303680. Its totient is φ = 1616146560.

The previous prime is 2103982877. The next prime is 2103982919. The reversal of 2103982915 is 5192893012.

It is not a de Polignac number, because 2103982915 - 27 = 2103982787 is a prime.

It is a super-2 number, since 2×21039829152 = 8853488213223794450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2103982919) 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 15 ways as a sum of consecutive naturals, for example, 13839 + ... + 66328.

It is an arithmetic number, because the mean of its divisors is an integer number (164143980).

Almost surely, 22103982915 is an apocalyptic number.

2103982915 is a deficient number, since it is larger than the sum of its proper divisors (522320765).

2103982915 is a wasteful number, since it uses less digits than its factorization.

2103982915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80382.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 2103982915 is about 45869.1935289907. The cubic root of 2103982915 is about 1281.3882470219.

The spelling of 2103982915 in words is "two billion, one hundred three million, nine hundred eighty-two thousand, nine hundred fifteen".

Divisors: 1 5 29 145 181 905 5249 26245 80167 400835 2324843 11624215 14510227 72551135 420796583 2103982915