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16144091 = 192336943
BaseRepresentation
bin111101100101…
…011011011011
31010101012112022
4331211123123
513113102331
61334005055
7254136215
oct75453333
933335468
1016144091
119127327
1254a678b
133463322
1422035b5
15163d67b
hexf656db

16144091 has 8 divisors (see below), whose sum is σ = 17733120. Its totient is φ = 14629032.

The previous prime is 16144061. The next prime is 16144103. The reversal of 16144091 is 19044161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16144091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16144091.

It is not an unprimeable number, because it can be changed into a prime (16144021) 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, 18035 + ... + 18908.

It is an arithmetic number, because the mean of its divisors is an integer number (2216640).

Almost surely, 216144091 is an apocalyptic number.

16144091 is a deficient number, since it is larger than the sum of its proper divisors (1589029).

16144091 is a wasteful number, since it uses less digits than its factorization.

16144091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36985.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 16144091 is about 4017.9710053707. The cubic root of 16144091 is about 252.7383808969.

The spelling of 16144091 in words is "sixteen million, one hundred forty-four thousand, ninety-one".

Divisors: 1 19 23 437 36943 701917 849689 16144091