Search a number
-
+
29690091 = 331099633
BaseRepresentation
bin111000101000…
…0100011101011
32001212102011000
41301100203223
530100040331
62540210043
7510235014
oct161204353
961772130
1029690091
1115839672
129b39923
1361c6c02
143d2c00b
1529170e6
hex1c508eb

29690091 has 8 divisors (see below), whose sum is σ = 43985360. Its totient is φ = 19793376.

The previous prime is 29690077. The next prime is 29690093. The reversal of 29690091 is 19009692.

It is not a de Polignac number, because 29690091 - 29 = 29689579 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 (29690093) 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, 549790 + ... + 549843.

It is an arithmetic number, because the mean of its divisors is an integer number (5498170).

Almost surely, 229690091 is an apocalyptic number.

29690091 is a deficient number, since it is larger than the sum of its proper divisors (14295269).

29690091 is a wasteful number, since it uses less digits than its factorization.

29690091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099642 (or 1099636 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 29690091 is about 5448.8614407048. The cubic root of 29690091 is about 309.6495901876.

The spelling of 29690091 in words is "twenty-nine million, six hundred ninety thousand, ninety-one".

Divisors: 1 3 9 27 1099633 3298899 9896697 29690091