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16051061 = 138913873
BaseRepresentation
bin111101001110…
…101101110101
31010012110220202
4331032231311
513102113221
61332010245
7253301045
oct75165565
933173822
1016051061
119073444
125460985
13342cb90
1421bb725
151620d0b
hexf4eb75

16051061 has 8 divisors (see below), whose sum is σ = 17481240. Its totient is φ = 14648832.

The previous prime is 16051031. The next prime is 16051073. The reversal of 16051061 is 16015061.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3025 + 16048036 = 55^2 + 4006^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16051061 - 218 = 15788917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16051031) 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, 5780 + ... + 8093.

It is an arithmetic number, because the mean of its divisors is an integer number (2185155).

Almost surely, 216051061 is an apocalyptic number.

It is an amenable number.

16051061 is a deficient number, since it is larger than the sum of its proper divisors (1430179).

16051061 is a wasteful number, since it uses less digits than its factorization.

16051061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13975.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 16051061 is about 4006.3775408716. The cubic root of 16051061 is about 252.2519787890.

The spelling of 16051061 in words is "sixteen million, fifty-one thousand, sixty-one".

Divisors: 1 13 89 1157 13873 180349 1234697 16051061