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19662164 = 2219992459
BaseRepresentation
bin100101100000…
…0010101010100
31100222221102022
41023000111110
520013142124
61541232312
7326061044
oct113002524
940887368
1019662164
111010a525
126702698
1340c5722
14287b724
151ad5c5e
hex12c0554

19662164 has 12 divisors (see below), whose sum is σ = 34440000. Its totient is φ = 9822168.

The previous prime is 19662157. The next prime is 19662173. The reversal of 19662164 is 46126691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6767 + ... + 9225.

It is an arithmetic number, because the mean of its divisors is an integer number (2870000).

Almost surely, 219662164 is an apocalyptic number.

It is an amenable number.

19662164 is a deficient number, since it is larger than the sum of its proper divisors (14777836).

19662164 is a wasteful number, since it uses less digits than its factorization.

19662164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462 (or 4460 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 19662164 is about 4434.2038744289. The cubic root of 19662164 is about 269.9046943004.

The spelling of 19662164 in words is "nineteen million, six hundred sixty-two thousand, one hundred sixty-four".

Divisors: 1 2 4 1999 2459 3998 4918 7996 9836 4915541 9831082 19662164