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29248681 = 711379853
BaseRepresentation
bin110111110010…
…0110010101001
32001000222122111
41233210302221
524441424211
62522522321
7503416060
oct157446251
961028574
1029248681
1115567a70
1299663a1
1360a1017
143c551d7
15287b421
hex1be4ca9

29248681 has 8 divisors (see below), whose sum is σ = 36465984. Its totient is φ = 22791120.

The previous prime is 29248679. The next prime is 29248697. The reversal of 29248681 is 18684292.

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

It is not a de Polignac number, because 29248681 - 21 = 29248679 is a prime.

It is a super-2 number, since 2×292486812 = 1710970680479522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29248631) 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, 189850 + ... + 190003.

It is an arithmetic number, because the mean of its divisors is an integer number (4558248).

Almost surely, 229248681 is an apocalyptic number.

It is an amenable number.

29248681 is a deficient number, since it is larger than the sum of its proper divisors (7217303).

29248681 is a wasteful number, since it uses less digits than its factorization.

29248681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379871.

The product of its digits is 55296, while the sum is 40.

The square root of 29248681 is about 5408.2049702281. The cubic root of 29248681 is about 308.1073759818.

It can be divided in two parts, 29248 and 681, that added together give a square (29929 = 1732).

The spelling of 29248681 in words is "twenty-nine million, two hundred forty-eight thousand, six hundred eighty-one".

Divisors: 1 7 11 77 379853 2658971 4178383 29248681