Search a number
-
+
13140054 = 232730003
BaseRepresentation
bin110010001000…
…000001010110
3220201120202200
4302020001112
511330440204
61145345330
7216455124
oct62100126
926646680
1013140054
117465354
124498246
132950ba5
141a60914
151248539
hexc88056

13140054 has 12 divisors (see below), whose sum is σ = 28470156. Its totient is φ = 4380012.

The previous prime is 13140047. The next prime is 13140079. The reversal of 13140054 is 45004131.

It is a happy number.

13140054 is nontrivially palindromic in base 8.

It is a super-2 number, since 2×131400542 = 345322038245832, which contains 22 as substring.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 730003 = 13140054 / (1 + 3 + 1 + 4 + 0 + 0 + 5 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364984 + ... + 365019.

It is an arithmetic number, because the mean of its divisors is an integer number (2372513).

Almost surely, 213140054 is an apocalyptic number.

13140054 is an abundant number, since it is smaller than the sum of its proper divisors (15330102).

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

13140054 is a wasteful number, since it uses less digits than its factorization.

13140054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730011 (or 730008 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 13140054 is about 3624.9212405237. The cubic root of 13140054 is about 235.9748488949.

Adding to 13140054 its reverse (45004131), we get a palindrome (58144185).

The spelling of 13140054 in words is "thirteen million, one hundred forty thousand, fifty-four".

Divisors: 1 2 3 6 9 18 730003 1460006 2190009 4380018 6570027 13140054