Search a number
-
+
12765949 = 711316139
BaseRepresentation
bin110000101100…
…101011111101
3220000120120221
4300230223331
511232002244
61133341341
7213336340
oct60545375
926016527
1012765949
11722a279
124337851
13284c821
1419a4457
1511c2784
hexc2cafd

12765949 has 8 divisors (see below), whose sum is σ = 14719680. Its totient is φ = 10844736.

The previous prime is 12765947. The next prime is 12765959. The reversal of 12765949 is 94956721.

It is a happy number.

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

It is not a de Polignac number, because 12765949 - 21 = 12765947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12765941) 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, 7279 + ... + 8860.

It is an arithmetic number, because the mean of its divisors is an integer number (1839960).

Almost surely, 212765949 is an apocalyptic number.

It is an amenable number.

12765949 is a deficient number, since it is larger than the sum of its proper divisors (1953731).

12765949 is a wasteful number, since it uses less digits than its factorization.

12765949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16259.

The product of its digits is 136080, while the sum is 43.

The square root of 12765949 is about 3572.9468230020. The cubic root of 12765949 is about 233.7138062485.

It can be divided in two parts, 1276 and 5949, that added together give a square (7225 = 852).

The spelling of 12765949 in words is "twelve million, seven hundred sixty-five thousand, nine hundred forty-nine".

Divisors: 1 7 113 791 16139 112973 1823707 12765949