Search a number
-
+
12124261 = 194713577
BaseRepresentation
bin101110010000…
…000001100101
3211210222100201
4232100001211
511100434021
61111510501
7205024462
oct56200145
924728321
1012124261
116931156
124088431
132686726
141878669
1510e7591
hexb90065

12124261 has 8 divisors (see below), whose sum is σ = 13034880. Its totient is φ = 11240928.

The previous prime is 12124241. The next prime is 12124267. The reversal of 12124261 is 16242121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12124261 - 223 = 3735653 is a prime.

It is a super-2 number, since 2×121242612 = 293995409592242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12124267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5896 + ... + 7681.

It is an arithmetic number, because the mean of its divisors is an integer number (1629360).

Almost surely, 212124261 is an apocalyptic number.

It is an amenable number.

12124261 is a deficient number, since it is larger than the sum of its proper divisors (910619).

12124261 is a wasteful number, since it uses less digits than its factorization.

12124261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13643.

The product of its digits is 192, while the sum is 19.

The square root of 12124261 is about 3481.9909534633. The cubic root of 12124261 is about 229.7303771836.

Adding to 12124261 its reverse (16242121), we get a palindrome (28366382).

The spelling of 12124261 in words is "twelve million, one hundred twenty-four thousand, two hundred sixty-one".

Divisors: 1 19 47 893 13577 257963 638119 12124261