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2120219 = 29113647
BaseRepresentation
bin1000000101101000011011
310222201101122
420011220123
51020321334
6113235455
724010253
oct10055033
93881348
102120219
111218a52
12862b8b
1359308a
143d2963
152bd32e
hex205a1b

2120219 has 8 divisors (see below), whose sum is σ = 2216160. Its totient is φ = 2025856.

The previous prime is 2120213. The next prime is 2120221. The reversal of 2120219 is 9120212.

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 2120219 - 24 = 2120203 is a prime.

It is a super-2 number, since 2×21202192 = 8990657215922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120197 and 2120206.

It is not an unprimeable number, because it can be changed into a prime (2120213) 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, 2954 + ... + 3600.

It is an arithmetic number, because the mean of its divisors is an integer number (277020).

22120219 is an apocalyptic number.

2120219 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2120219 is a deficient number, since it is larger than the sum of its proper divisors (95941).

2120219 is a wasteful number, since it uses less digits than its factorization.

2120219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2120219 is about 1456.0971808228. The cubic root of 2120219 is about 128.4675891147.

The spelling of 2120219 in words is "two million, one hundred twenty thousand, two hundred nineteen".

Divisors: 1 29 113 647 3277 18763 73111 2120219