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16018964 = 22131718121
BaseRepresentation
bin111101000110…
…111000010100
31010010211212222
4331012320110
513100101324
61331201512
7253105343
oct75067024
933124788
1016018964
119051315
125446298
13341b3a0
1421adb5a
15161655e
hexf46e14

16018964 has 24 divisors (see below), whose sum is σ = 31967208. Its totient is φ = 6958080.

The previous prime is 16018943. The next prime is 16018969. The reversal of 16018964 is 46981061.

16018964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1119364 + 14899600 = 1058^2 + 3860^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16018969) 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, 8177 + ... + 9944.

It is an arithmetic number, because the mean of its divisors is an integer number (1331967).

Almost surely, 216018964 is an apocalyptic number.

It is an amenable number.

16018964 is a deficient number, since it is larger than the sum of its proper divisors (15948244).

16018964 is a wasteful number, since it uses less digits than its factorization.

16018964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18155 (or 18153 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 16018964 is about 4002.3697980072. The cubic root of 16018964 is about 252.0837254341.

The spelling of 16018964 in words is "sixteen million, eighteen thousand, nine hundred sixty-four".

Divisors: 1 2 4 13 17 26 34 52 68 221 442 884 18121 36242 72484 235573 308057 471146 616114 942292 1232228 4004741 8009482 16018964