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29668090 = 252966809
BaseRepresentation
bin111000100101…
…1001011111010
32001211021222011
41301023023322
530043334330
62535520134
7510113614
oct161131372
961737864
1029668090
1115824091
129b2904a
1361b9baa
143d23db4
15291082a
hex1c4b2fa

29668090 has 8 divisors (see below), whose sum is σ = 53402580. Its totient is φ = 11867232.

The previous prime is 29668087. The next prime is 29668099. The reversal of 29668090 is 9086692.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28933641 + 734449 = 5379^2 + 857^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (29668099) 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, 1483395 + ... + 1483414.

Almost surely, 229668090 is an apocalyptic number.

29668090 is a deficient number, since it is larger than the sum of its proper divisors (23734490).

29668090 is a wasteful number, since it uses less digits than its factorization.

29668090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966816.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 29668090 is about 5446.8422044337. The cubic root of 29668090 is about 309.5730856046.

It can be divided in two parts, 296 and 68090, that added together give a palindrome (68386).

The spelling of 29668090 in words is "twenty-nine million, six hundred sixty-eight thousand, ninety".

Divisors: 1 2 5 10 2966809 5933618 14834045 29668090