Search a number
-
+
29249893 = 291008617
BaseRepresentation
bin110111110010…
…1000101100101
32001001001022101
41233211011211
524441444033
62522532101
7503422441
oct157450545
961031271
1029249893
1115568972
129967031
1360a173a
143c55821
15287b97d
hex1be5165

29249893 has 4 divisors (see below), whose sum is σ = 30258540. Its totient is φ = 28241248.

The previous prime is 29249887. The next prime is 29249917. The reversal of 29249893 is 39894292.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19775809 + 9474084 = 4447^2 + 3078^2 .

It is a cyclic number.

It is not a de Polignac number, because 29249893 - 213 = 29241701 is a prime.

It is a super-2 number, since 2×292498932 = 1711112481022898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29249863) 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, 504280 + ... + 504337.

It is an arithmetic number, because the mean of its divisors is an integer number (7564635).

Almost surely, 229249893 is an apocalyptic number.

It is an amenable number.

29249893 is a deficient number, since it is larger than the sum of its proper divisors (1008647).

29249893 is a wasteful number, since it uses less digits than its factorization.

29249893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008646.

The product of its digits is 279936, while the sum is 46.

The square root of 29249893 is about 5408.3170210334. The cubic root of 29249893 is about 308.1116316835. Note that the first 3 decimals are identical.

The spelling of 29249893 in words is "twenty-nine million, two hundred forty-nine thousand, eight hundred ninety-three".

Divisors: 1 29 1008617 29249893