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20220219 = 336112277
BaseRepresentation
bin100110100100…
…0100100111011
31102001021221000
41031020210323
520134021334
62001220043
7333604035
oct115104473
942037830
1020220219
1110460828
126931623
13425c736
142984c55
151b96299
hex134893b

20220219 has 16 divisors (see below), whose sum is σ = 30449440. Its totient is φ = 13258080.

The previous prime is 20220217. The next prime is 20220247. The reversal of 20220219 is 91202202.

It is not a de Polignac number, because 20220219 - 21 = 20220217 is a prime.

It is a super-2 number, since 2×202202192 = 817714512815922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4492 + ... + 7785.

It is an arithmetic number, because the mean of its divisors is an integer number (1903090).

Almost surely, 220220219 is an apocalyptic number.

20220219 is a deficient number, since it is larger than the sum of its proper divisors (10229221).

20220219 is a wasteful number, since it uses less digits than its factorization.

20220219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12347 (or 12341 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 20220219 is about 4496.6897824956. The cubic root of 20220219 is about 272.4344044340.

The spelling of 20220219 in words is "twenty million, two hundred twenty thousand, two hundred nineteen".

Divisors: 1 3 9 27 61 183 549 1647 12277 36831 110493 331479 748897 2246691 6740073 20220219