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1606664 = 23229877
BaseRepresentation
bin110001000010000001000
310000121221002
412020100020
5402403124
654234132
716441103
oct6102010
93017832
101606664
119a8124
12655948
134433b7
142db73a
1521b0ae
hex188408

1606664 has 16 divisors (see below), whose sum is σ = 3029100. Its totient is φ = 798912.

The previous prime is 1606663. The next prime is 1606669. The reversal of 1606664 is 4666061.

It can be written as a sum of positive squares in 2 ways, for example, as 1304164 + 302500 = 1142^2 + 550^2 .

It is not an unprimeable number, because it can be changed into a prime (1606663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394 + ... + 2270.

21606664 is an apocalyptic number.

It is an amenable number.

1606664 is a deficient number, since it is larger than the sum of its proper divisors (1422436).

1606664 is a wasteful number, since it uses less digits than its factorization.

1606664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1606664 is about 1267.5425042183. The cubic root of 1606664 is about 117.1228650622.

The spelling of 1606664 in words is "one million, six hundred six thousand, six hundred sixty-four".

Divisors: 1 2 4 8 229 458 877 916 1754 1832 3508 7016 200833 401666 803332 1606664