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2123850 = 235214159
BaseRepresentation
bin1000000110100001001010
310222220101010
420012201022
51020430400
6113304350
724023661
oct10064112
93886333
102123850
111220753
128650b6
13594921
143d3dd8
152be450
hex20684a

2123850 has 24 divisors (see below), whose sum is σ = 5267520. Its totient is φ = 566320.

The previous prime is 2123831. The next prime is 2123851. The reversal of 2123850 is 583212.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2123851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6930 + ... + 7229.

It is an arithmetic number, because the mean of its divisors is an integer number (219480).

22123850 is an apocalyptic number.

2123850 is an abundant number, since it is smaller than the sum of its proper divisors (3143670).

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

2123850 is a wasteful number, since it uses less digits than its factorization.

2123850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14174 (or 14169 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2123850 is about 1457.3434735847. The cubic root of 2123850 is about 128.5408833964.

It can be divided in two parts, 21 and 23850, that added together give a triangular number (23871 = T218).

The spelling of 2123850 in words is "two million, one hundred twenty-three thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 14159 28318 42477 70795 84954 141590 212385 353975 424770 707950 1061925 2123850