Search a number
-
+
239660690 = 25233133613
BaseRepresentation
bin11100100100011…
…10111010010010
3121200222000122212
432102032322102
5442323120230
635440432122
75640040133
oct1622167222
9550860585
10239660690
11113311695
1268318642
133a862579
1423b87c8a
1516090895
hexe48ee92

239660690 has 32 divisors (see below), whose sum is σ = 464679936. Its totient is φ = 88735680.

The previous prime is 239660671. The next prime is 239660711. The reversal of 239660690 is 96066932.

239660690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2396606902 = 114874492662552200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9677 + ... + 23936.

It is an arithmetic number, because the mean of its divisors is an integer number (14521248).

Almost surely, 2239660690 is an apocalyptic number.

239660690 is a deficient number, since it is larger than the sum of its proper divisors (225019246).

239660690 is a wasteful number, since it uses less digits than its factorization.

239660690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33674.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 239660690 is about 15480.9783282582. The cubic root of 239660690 is about 621.1534977705.

The spelling of 239660690 in words is "two hundred thirty-nine million, six hundred sixty thousand, six hundred ninety".

Divisors: 1 2 5 10 23 31 46 62 115 155 230 310 713 1426 3565 7130 33613 67226 168065 336130 773099 1042003 1546198 2084006 3865495 5210015 7730990 10420030 23966069 47932138 119830345 239660690