Search a number
-
+
20694024 = 23321322109
BaseRepresentation
bin100111011110…
…0010000001000
31102221100212100
41032330100020
520244202044
62015313400
7340616301
oct116742010
942840770
1020694024
11107547aa
126b1b860
1343972b0
142a697a8
151c3b869
hex13bc408

20694024 has 48 divisors (see below), whose sum is σ = 60360300. Its totient is φ = 6367104.

The previous prime is 20694017. The next prime is 20694031. The reversal of 20694024 is 42049602.

It is an interprime number because it is at equal distance from previous prime (20694017) and next prime (20694031).

It can be written as a sum of positive squares in 2 ways, for example, as 17388900 + 3305124 = 4170^2 + 1818^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10119 + ... + 11990.

Almost surely, 220694024 is an apocalyptic number.

20694024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20694024 is an abundant number, since it is smaller than the sum of its proper divisors (39666276).

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

20694024 is a wasteful number, since it uses less digits than its factorization.

20694024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22134 (or 22127 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20694024 is about 4549.0684760729. The cubic root of 20694024 is about 274.5459128712.

The spelling of 20694024 in words is "twenty million, six hundred ninety-four thousand, twenty-four".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 22109 44218 66327 88436 132654 176872 198981 265308 287417 397962 530616 574834 795924 862251 1149668 1591848 1724502 2299336 2586753 3449004 5173506 6898008 10347012 20694024