Search a number
29288271 = 313771261
BaseRepresentation
bin110111110111…
…0011101001111
32001002222221210
41233232131033
524444211041
62523425503
7503642355
oct157563517
961088853
1029288271
1115594791
129985293
1360b604c
143c657d5
152888016
hex1bee74f

29288271 has 8 divisors (see below), whose sum is σ = 39336624. Its totient is φ = 19382720.

The previous prime is 29288267. The next prime is 29288279. The reversal of 29288271 is 17288292.

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 29288271 - 22 = 29288267 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29288279) 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, 35220 + ... + 36041.

It is an arithmetic number, because the mean of its divisors is an integer number (4917078).

Almost surely, 229288271 is an apocalyptic number.

29288271 is a deficient number, since it is larger than the sum of its proper divisors (10048353).

29288271 is a wasteful number, since it uses less digits than its factorization.

29288271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71401.

The product of its digits is 32256, while the sum is 39.

The square root of 29288271 is about 5411.8639118145. The cubic root of 29288271 is about 308.2463277926.

The spelling of 29288271 in words is "twenty-nine million, two hundred eighty-eight thousand, two hundred seventy-one".

Divisors: 1 3 137 411 71261 213783 9762757 29288271