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2100044140 = 225109963323
BaseRepresentation
bin111110100101100…
…0010000101101100
312102100121021222121
41331023002011230
513300102403030
6544215122324
7103020036445
oct17513020554
95370537877
102100044140
11988469277
124a73733a4
13276104c8c
1415cc9c2cc
15c457547a
hex7d2c216c

2100044140 has 24 divisors (see below), whose sum is σ = 4450556880. Its totient is φ = 832310208.

The previous prime is 2100044131. The next prime is 2100044143. The reversal of 2100044140 is 414400012.

It is not an unprimeable number, because it can be changed into a prime (2100044143) 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, 479482 + ... + 483841.

It is an arithmetic number, because the mean of its divisors is an integer number (185439870).

Almost surely, 22100044140 is an apocalyptic number.

2100044140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100044140 is an abundant number, since it is smaller than the sum of its proper divisors (2350512740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2100044140 is a wasteful number, since it uses less digits than its factorization.

2100044140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963441 (or 963439 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2100044140 is about 45826.2385539114. The cubic root of 2100044140 is about 1280.5881371094.

Adding to 2100044140 its reverse (414400012), we get a palindrome (2514444152).

The spelling of 2100044140 in words is "two billion, one hundred million, forty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 963323 1926646 3853292 4816615 9633230 19266460 105002207 210004414 420008828 525011035 1050022070 2100044140