Search a number
-
+
29690293 = 191562647
BaseRepresentation
bin111000101000…
…0100110110101
32001212102102111
41301100212311
530100042133
62540211021
7510235423
oct161204665
961772374
1029690293
1115839836
129b39a71
1361c7029
143d2c113
1529171cd
hex1c509b5

29690293 has 4 divisors (see below), whose sum is σ = 31252960. Its totient is φ = 28127628.

The previous prime is 29690291. The next prime is 29690299. The reversal of 29690293 is 39209692.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29690293 - 21 = 29690291 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 (29690291) 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, 781305 + ... + 781342.

It is an arithmetic number, because the mean of its divisors is an integer number (7813240).

Almost surely, 229690293 is an apocalyptic number.

It is an amenable number.

29690293 is a deficient number, since it is larger than the sum of its proper divisors (1562667).

29690293 is a wasteful number, since it uses less digits than its factorization.

29690293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562666.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 29690293 is about 5448.8799766558. The cubic root of 29690293 is about 309.6502924317.

The spelling of 29690293 in words is "twenty-nine million, six hundred ninety thousand, two hundred ninety-three".

Divisors: 1 19 1562647 29690293