Search a number
-
+
29917884 = 22389109257
BaseRepresentation
bin111001000100…
…0001010111100
32002021222121210
41302020022330
530124333014
62545124420
7512204103
oct162101274
962258553
1029917884
1115984827
12a029710
1362767b9
143d8b03a
15295e859
hex1c882bc

29917884 has 48 divisors (see below), whose sum is σ = 71517600. Its totient is φ = 9732096.

The previous prime is 29917873. The next prime is 29917891. The reversal of 29917884 is 48871992.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 116284 + ... + 116540.

It is an arithmetic number, because the mean of its divisors is an integer number (1489950).

Almost surely, 229917884 is an apocalyptic number.

It is an amenable number.

29917884 is an abundant number, since it is smaller than the sum of its proper divisors (41599716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29917884 is a wasteful number, since it uses less digits than its factorization.

29917884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 460 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 29917884 is about 5469.7243074948. The cubic root of 29917884 is about 310.4394876385.

The spelling of 29917884 in words is "twenty-nine million, nine hundred seventeen thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 89 109 178 218 257 267 327 356 436 514 534 654 771 1028 1068 1308 1542 3084 9701 19402 22873 28013 29103 38804 45746 56026 58206 68619 84039 91492 112052 116412 137238 168078 274476 336156 2493157 4986314 7479471 9972628 14958942 29917884