Search a number
-
+
16930 = 251693
BaseRepresentation
bin100001000100010
3212020001
410020202
51020210
6210214
7100234
oct41042
925201
1016930
11117a1
12996a
137924
146254
15503a
hex4222

16930 has 8 divisors (see below), whose sum is σ = 30492. Its totient is φ = 6768.

The previous prime is 16927. The next prime is 16931. The reversal of 16930 is 3961.

16930 = T90 + T91 + ... + T93.

It can be written as a sum of positive squares in 2 ways, for example, as 16641 + 289 = 129^2 + 17^2 .

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

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16898 and 16907.

It is not an unprimeable number, because it can be changed into a prime (16931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837 + ... + 856.

216930 is an apocalyptic number.

16930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16930 is a deficient number, since it is larger than the sum of its proper divisors (13562).

16930 is a wasteful number, since it uses less digits than its factorization.

16930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 16930 is about 130.1153334546. The cubic root of 16930 is about 25.6774752551.

It can be divided in two parts, 16 and 930, that added together give a triangular number (946 = T43).

The spelling of 16930 in words is "sixteen thousand, nine hundred thirty".

Divisors: 1 2 5 10 1693 3386 8465 16930