Search a number
-
+
13490929 = 36732
BaseRepresentation
bin110011011101…
…101011110001
3221101102002001
4303131223301
511423202204
61201054001
7222446104
oct63355361
927342061
1013490929
117684a31
124627301
132a447ca
141b1273b
1512b74a4
hexcddaf1

13490929 has 3 divisors (see below), whose sum is σ = 13494603. Its totient is φ = 13487256.

The previous prime is 13490879. The next prime is 13490947. The reversal of 13490929 is 92909431.

The square root of 13490929 is 3673.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92909431 = 121776343.

It can be written as a sum of positive squares in only one way, i.e., 874225 + 12616704 = 935^2 + 3552^2 .

It is not a de Polignac number, because 13490929 - 29 = 13490417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13490959) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1837 + ... + 5509.

It is an arithmetic number, because the mean of its divisors is an integer number (4498201).

Almost surely, 213490929 is an apocalyptic number.

13490929 is the 3673-rd square number.

13490929 is the 1837-th centered octagonal number.

It is an amenable number.

13490929 is a deficient number, since it is larger than the sum of its proper divisors (3674).

13490929 is an frugal number, since it uses more digits than its factorization.

13490929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7346 (or 3673 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The cubic root of 13490929 is about 238.0568150499.

The spelling of 13490929 in words is "thirteen million, four hundred ninety thousand, nine hundred twenty-nine".

Divisors: 1 3673 13490929