Search a number
-
+
12103319 = 59205141
BaseRepresentation
bin101110001010…
…111010010111
3211202220122002
4232022322113
511044301234
61111225515
7204606434
oct56127227
924686562
1012103319
116917448
12407829b
13267a037
141870b8b
1510e127e
hexb8ae97

12103319 has 4 divisors (see below), whose sum is σ = 12308520. Its totient is φ = 11898120.

The previous prime is 12103279. The next prime is 12103331. The reversal of 12103319 is 91330121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91330121 = 766911909.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12103319 is a prime.

It is a super-2 number, since 2×121033192 = 292980661631522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12103319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12105319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102512 + ... + 102629.

It is an arithmetic number, because the mean of its divisors is an integer number (3077130).

Almost surely, 212103319 is an apocalyptic number.

12103319 is a deficient number, since it is larger than the sum of its proper divisors (205201).

12103319 is an equidigital number, since it uses as much as digits as its factorization.

12103319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205200.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 12103319 is about 3478.9824661817. The cubic root of 12103319 is about 229.5980313521.

The spelling of 12103319 in words is "twelve million, one hundred three thousand, three hundred nineteen".

Divisors: 1 59 205141 12103319