Search a number
-
+
13867392 = 273721167
BaseRepresentation
bin110100111001…
…100110000000
3222002112111010
4310321212000
512022224032
61213120520
7225604500
oct64714600
928075433
1013867392
117911860
124789140
132b46c76
141bada00
15133dccc
hexd39980

13867392 has 192 divisors, whose sum is σ = 47442240. Its totient is φ = 3548160.

The previous prime is 13867379. The next prime is 13867409. The reversal of 13867392 is 29376831.

It is a tau number, because it is divible by the number of its divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 13867392.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206943 + ... + 207009.

It is an arithmetic number, because the mean of its divisors is an integer number (247095).

Almost surely, 213867392 is an apocalyptic number.

13867392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13867392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23721120).

13867392 is an abundant number, since it is smaller than the sum of its proper divisors (33574848).

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

13867392 is a wasteful number, since it uses less digits than its factorization.

13867392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 90 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 13867392 is about 3723.8947353544. The cubic root of 13867392 is about 240.2508488317.

It can be divided in two parts, 1386 and 7392, that added together give a palindrome (8778).

The spelling of 13867392 in words is "thirteen million, eight hundred sixty-seven thousand, three hundred ninety-two".