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2072219 = 16312713
BaseRepresentation
bin111111001111010011011
310220021112212
413321322123
51012302334
6112225335
723420312
oct7717233
93807485
102072219
111195986
1283b24b
13577286
143bd279
152adece
hex1f9e9b

2072219 has 4 divisors (see below), whose sum is σ = 2085096. Its totient is φ = 2059344.

The previous prime is 2072209. The next prime is 2072267. The reversal of 2072219 is 9122702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9122702 = 24561351.

It is a cyclic number.

It is not a de Polignac number, because 2072219 - 212 = 2068123 is a prime.

It is a super-2 number, since 2×20722192 = 8588183167922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2072194 and 2072203.

It is not an unprimeable number, because it can be changed into a prime (2072209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6194 + ... + 6519.

It is an arithmetic number, because the mean of its divisors is an integer number (521274).

22072219 is an apocalyptic number.

2072219 is a deficient number, since it is larger than the sum of its proper divisors (12877).

2072219 is a wasteful number, since it uses less digits than its factorization.

2072219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12876.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2072219 is about 1439.5204062465. The cubic root of 2072219 is about 127.4907131516.

The spelling of 2072219 in words is "two million, seventy-two thousand, two hundred nineteen".

Divisors: 1 163 12713 2072219