Search a number
-
+
18077676 = 2231506473
BaseRepresentation
bin100010011110…
…1011111101100
31021000102220120
41010331133230
514111441201
61443244540
7306441411
oct104753754
937012816
1018077676
11a228031
126079750
13398c466
142588108
1518c1536
hex113d7ec

18077676 has 12 divisors (see below), whose sum is σ = 42181272. Its totient is φ = 6025888.

The previous prime is 18077671. The next prime is 18077677. The reversal of 18077676 is 67677081.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (18077671) 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, 753225 + ... + 753248.

It is an arithmetic number, because the mean of its divisors is an integer number (3515106).

Almost surely, 218077676 is an apocalyptic number.

It is an amenable number.

18077676 is an abundant number, since it is smaller than the sum of its proper divisors (24103596).

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

18077676 is a wasteful number, since it uses less digits than its factorization.

18077676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506480 (or 1506478 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 18077676 is about 4251.7850368992. The cubic root of 18077676 is about 262.4505775436.

The spelling of 18077676 in words is "eighteen million, seventy-seven thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 12 1506473 3012946 4519419 6025892 9038838 18077676