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19442922 = 238213947
BaseRepresentation
bin100101000101…
…0110011101010
31100120210200020
41022022303222
514434133142
61532421310
7324155622
oct112126352
940523606
1019442922
11aa7a834
126617836
1340499b5
142821882
151a90cec
hex128acea

19442922 has 16 divisors (see below), whose sum is σ = 38943072. Its totient is φ = 6471440.

The previous prime is 19442881. The next prime is 19442939. The reversal of 19442922 is 22924491.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2953 + ... + 6899.

It is an arithmetic number, because the mean of its divisors is an integer number (2433942).

Almost surely, 219442922 is an apocalyptic number.

19442922 is an abundant number, since it is smaller than the sum of its proper divisors (19500150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19442922 is a wasteful number, since it uses less digits than its factorization.

19442922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773.

The product of its digits is 10368, while the sum is 33.

The square root of 19442922 is about 4409.4128860881. The cubic root of 19442922 is about 268.8977559957.

The spelling of 19442922 in words is "nineteen million, four hundred forty-two thousand, nine hundred twenty-two".

Divisors: 1 2 3 6 821 1642 2463 3947 4926 7894 11841 23682 3240487 6480974 9721461 19442922