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16065738 = 2321371967
BaseRepresentation
bin111101010010…
…010011001010
31010020020001100
4331102103022
513103100423
61332202230
7253361613
oct75222312
933206040
1016065738
119083477
125469376
133436770
1421c2c0a
151625343
hexf524ca

16065738 has 48 divisors (see below), whose sum is σ = 38054016. Its totient is φ = 4868640.

The previous prime is 16065737. The next prime is 16065743. The reversal of 16065738 is 83756061.

16065738 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16065737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16131 + ... + 17097.

It is an arithmetic number, because the mean of its divisors is an integer number (792792).

Almost surely, 216065738 is an apocalyptic number.

16065738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16065738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19027008).

16065738 is an abundant number, since it is smaller than the sum of its proper divisors (21988278).

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

16065738 is a wasteful number, since it uses less digits than its factorization.

16065738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 16065738 is about 4008.2088268951. The cubic root of 16065738 is about 252.3288412970.

The spelling of 16065738 in words is "sixteen million, sixty-five thousand, seven hundred thirty-eight".

Divisors: 1 2 3 6 9 13 18 26 39 71 78 117 142 213 234 426 639 923 967 1278 1846 1934 2769 2901 5538 5802 8307 8703 12571 16614 17406 25142 37713 68657 75426 113139 137314 205971 226278 411942 617913 892541 1235826 1785082 2677623 5355246 8032869 16065738