Search a number
-
+
12742807 = 711732267
BaseRepresentation
bin110000100111…
…000010010111
3212222101211211
4300213002113
511230232212
61133042251
7213212020
oct60470227
925871754
1012742807
117213950
124326387
13284212c
141999c47
1511ba9a7
hexc27097

12742807 has 16 divisors (see below), whose sum is σ = 16111872. Its totient is φ = 9789120.

The previous prime is 12742801. The next prime is 12742811. The reversal of 12742807 is 70824721.

It is not a de Polignac number, because 12742807 - 27 = 12742679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12742801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4488 + ... + 6754.

It is an arithmetic number, because the mean of its divisors is an integer number (1006992).

Almost surely, 212742807 is an apocalyptic number.

12742807 is a deficient number, since it is larger than the sum of its proper divisors (3369065).

12742807 is a wasteful number, since it uses less digits than its factorization.

12742807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 12742807 is about 3569.7068507092. The cubic root of 12742807 is about 233.5724960484.

The spelling of 12742807 in words is "twelve million, seven hundred forty-two thousand, eight hundred seven".

Divisors: 1 7 11 73 77 511 803 2267 5621 15869 24937 165491 174559 1158437 1820401 12742807