[go: up one dir, main page]

Search a number
-
+
12393495 = 3251931427
BaseRepresentation
bin101111010001…
…110000010111
3212022122200100
4233101300113
511133042440
61121345143
7210225432
oct57216027
925278610
1012393495
116aa5464
1241981b3
13274c13a
141908819
15114c230
hexbd1c17

12393495 has 24 divisors (see below), whose sum is σ = 21608496. Its totient is φ = 6571008.

The previous prime is 12393487. The next prime is 12393499. The reversal of 12393495 is 59439321.

It is a happy number.

It is not a de Polignac number, because 12393495 - 23 = 12393487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12393499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7972 + ... + 9398.

It is an arithmetic number, because the mean of its divisors is an integer number (900354).

Almost surely, 212393495 is an apocalyptic number.

12393495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12393495 is a deficient number, since it is larger than the sum of its proper divisors (9215001).

12393495 is a wasteful number, since it uses less digits than its factorization.

12393495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631 (or 1628 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 12393495 is about 3520.4396032314. The cubic root of 12393495 is about 231.4184241746.

The spelling of 12393495 in words is "twelve million, three hundred ninety-three thousand, four hundred ninety-five".

Divisors: 1 3 5 9 15 45 193 579 965 1427 1737 2895 4281 7135 8685 12843 21405 64215 275411 826233 1377055 2478699 4131165 12393495