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2112019 = 71323209
BaseRepresentation
bin1000000011101000010011
310222022010221
420003220103
51020041034
6113133511
723644330
oct10035023
93868127
102112019
111212878
1285a297
1358c420
143cd987
152babb4
hex203a13

2112019 has 8 divisors (see below), whose sum is σ = 2599520. Its totient is φ = 1670976.

The previous prime is 2112017. The next prime is 2112053. The reversal of 2112019 is 9102112.

2112019 = T52 + T53 + ... + T233.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112019 - 21 = 2112017 is a prime.

It is a super-2 number, since 2×21120192 = 8921248512722, which contains 22 as substring.

2112019 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2111993 and 2112011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112013) 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, 11514 + ... + 11695.

It is an arithmetic number, because the mean of its divisors is an integer number (324940).

22112019 is an apocalyptic number.

2112019 is a deficient number, since it is larger than the sum of its proper divisors (487501).

2112019 is a wasteful number, since it uses less digits than its factorization.

2112019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23229.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 2112019 is about 1453.2787069244. The cubic root of 2112019 is about 128.3017579408.

The spelling of 2112019 in words is "two million, one hundred twelve thousand, nineteen".

Divisors: 1 7 13 91 23209 162463 301717 2112019