Search a number
-
+
12653105 = 523472341
BaseRepresentation
bin110000010001…
…001000110001
3212210211210112
4300101020301
511214344410
61131111105
7212356343
oct60211061
925724715
1012653105
117162513
1242a2495
13281035a
141975293
15119e105
hexc11231

12653105 has 16 divisors (see below), whose sum is σ = 16187904. Its totient is φ = 9472320.

The previous prime is 12653099. The next prime is 12653111. The reversal of 12653105 is 50135621.

It is an interprime number because it is at equal distance from previous prime (12653099) and next prime (12653111).

It is a de Polignac number, because none of the positive numbers 2k-12653105 is a prime.

It is a super-2 number, since 2×126531052 = 320202132282050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

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, 4235 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (1011744).

Almost surely, 212653105 is an apocalyptic number.

It is an amenable number.

12653105 is a deficient number, since it is larger than the sum of its proper divisors (3534799).

12653105 is a wasteful number, since it uses less digits than its factorization.

12653105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 12653105 is about 3557.1203240824. The cubic root of 12653105 is about 233.0231331450.

Adding to 12653105 its reverse (50135621), we get a palindrome (62788726).

The spelling of 12653105 in words is "twelve million, six hundred fifty-three thousand, one hundred five".

Divisors: 1 5 23 47 115 235 1081 2341 5405 11705 53843 110027 269215 550135 2530621 12653105