Search a number
-
+
29657701 = 1092411129
BaseRepresentation
bin111000100100…
…0101001100101
32001210202201101
41301020221211
530043021301
62535400101
7510041413
oct161105145
961722641
1029657701
11158172a7
129b23031
1361b5248
143d202b3
15290c701
hex1c48a65

29657701 has 8 divisors (see below), whose sum is σ = 30080600. Its totient is φ = 29237760.

The previous prime is 29657699. The next prime is 29657713. The reversal of 29657701 is 10775692.

It can be written as a sum of positive squares in 4 ways, for example, as 4104676 + 25553025 = 2026^2 + 5055^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 29657701 - 21 = 29657699 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 (29657791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25705 + ... + 26833.

It is an arithmetic number, because the mean of its divisors is an integer number (3760075).

Almost surely, 229657701 is an apocalyptic number.

It is an amenable number.

29657701 is a deficient number, since it is larger than the sum of its proper divisors (422899).

29657701 is a wasteful number, since it uses less digits than its factorization.

29657701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 29657701 is about 5445.8884490963. Note that the first 3 decimals coincide. The cubic root of 29657701 is about 309.5369465490.

The spelling of 29657701 in words is "twenty-nine million, six hundred fifty-seven thousand, seven hundred one".

Divisors: 1 109 241 1129 26269 123061 272089 29657701