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20120222019 = 310166403373
BaseRepresentation
bin10010101111010000…
…100011100101000011
31220221012202011212010
4102233100203211003
5312201234101034
613124302104003
71311412031262
oct225720434503
956835664763
1020120222019
118595382667
123a9627b003
131b8857b921
14d8c25c5d9
157cb5b73e9
hex4af423943

20120222019 has 8 divisors (see below), whose sum is σ = 27092576592. Its totient is φ = 13280674400.

The previous prime is 20120222009. The next prime is 20120222027. The reversal of 20120222019 is 91022202102.

It is a happy number.

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 20120222019 - 211 = 20120219971 is a prime.

It is a super-2 number, since 2×201202220192 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20120221986 and 20120222004.

It is not an unprimeable number, because it can be changed into a prime (20120222009) 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, 33201384 + ... + 33201989.

It is an arithmetic number, because the mean of its divisors is an integer number (3386572074).

Almost surely, 220120222019 is an apocalyptic number.

20120222019 is a deficient number, since it is larger than the sum of its proper divisors (6972354573).

20120222019 is a wasteful number, since it uses less digits than its factorization.

20120222019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66403477.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 20120222019 in words is "twenty billion, one hundred twenty million, two hundred twenty-two thousand, nineteen".

Divisors: 1 3 101 303 66403373 199210119 6706740673 20120222019