[go: up one dir, main page]

Search a number
-
+
13671864 = 2332189887
BaseRepresentation
bin110100001001…
…110110111000
3221201121021100
4310021312320
511444444424
61205011400
7224131443
oct64116670
927647240
1013671864
117798968
1246b3b60
132aa8c7b
141b5c65a
151300dc9
hexd09db8

13671864 has 24 divisors (see below), whose sum is σ = 37028160. Its totient is φ = 4557264.

The previous prime is 13671863. The next prime is 13671881. The reversal of 13671864 is 46817631.

13671864 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13671863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94872 + ... + 95015.

It is an arithmetic number, because the mean of its divisors is an integer number (1542840).

Almost surely, 213671864 is an apocalyptic number.

It is an amenable number.

13671864 is an abundant number, since it is smaller than the sum of its proper divisors (23356296).

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

13671864 is a wasteful number, since it uses less digits than its factorization.

13671864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189899 (or 189892 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 13671864 is about 3697.5483769655. The cubic root of 13671864 is about 239.1163337178.

It can be divided in two parts, 13671 and 864, that added together give a triangular number (14535 = T170).

The spelling of 13671864 in words is "thirteen million, six hundred seventy-one thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 189887 379774 569661 759548 1139322 1519096 1708983 2278644 3417966 4557288 6835932 13671864