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2108140 = 225105407
BaseRepresentation
bin1000000010101011101100
310222002211021
420002223230
51014430030
6113103524
723630116
oct10025354
93862737
102108140
11120a971
12857ba4
1358a728
143cc3b6
152b997a
hex202aec

2108140 has 12 divisors (see below), whose sum is σ = 4427136. Its totient is φ = 843248.

The previous prime is 2108137. The next prime is 2108159. The reversal of 2108140 is 418012.

It is a happy number.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52684 + ... + 52723.

It is an arithmetic number, because the mean of its divisors is an integer number (368928).

22108140 is an apocalyptic number.

2108140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2108140 is an abundant number, since it is smaller than the sum of its proper divisors (2318996).

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

2108140 is a wasteful number, since it uses less digits than its factorization.

2108140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105416 (or 105414 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2108140 is about 1451.9435250725. The cubic root of 2108140 is about 128.2231621332.

The spelling of 2108140 in words is "two million, one hundred eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 105407 210814 421628 527035 1054070 2108140