Search a number
-
+
16893261 = 32711191283
BaseRepresentation
bin100000001110…
…0010101001101
31011210021012100
41000130111031
513311041021
61402025313
7263406330
oct100342515
934707170
1016893261
119599180
1257a8239
133666318
14235a617
15173a626
hex101c54d

16893261 has 48 divisors (see below), whose sum is σ = 32048640. Its totient is φ = 8307360.

The previous prime is 16893251. The next prime is 16893263. The reversal of 16893261 is 16239861.

It is not a de Polignac number, because 16893261 - 26 = 16893197 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16893263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12526 + ... + 13808.

It is an arithmetic number, because the mean of its divisors is an integer number (667680).

Almost surely, 216893261 is an apocalyptic number.

16893261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16893261 is a deficient number, since it is larger than the sum of its proper divisors (15155379).

16893261 is a wasteful number, since it uses less digits than its factorization.

16893261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1323 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 16893261 is about 4110.1412384491. The cubic root of 16893261 is about 256.5888797467.

It can be divided in two parts, 1689 and 3261, that added together give a triangular number (4950 = T99).

The spelling of 16893261 in words is "sixteen million, eight hundred ninety-three thousand, two hundred sixty-one".

Divisors: 1 3 7 9 11 19 21 33 57 63 77 99 133 171 209 231 399 627 693 1197 1283 1463 1881 3849 4389 8981 11547 13167 14113 24377 26943 42339 73131 80829 98791 127017 170639 219393 268147 296373 511917 804441 889119 1535751 1877029 2413323 5631087 16893261