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29420384 = 257229647
BaseRepresentation
bin111000000111…
…0101101100000
32001100201011212
41300032231200
530012423014
62530325252
7505032500
oct160165540
961321155
1029420384
1115674a74
129a29828
136131216
143c9ba00
1528b223e
hex1c0eb60

29420384 has 72 divisors (see below), whose sum is σ = 69809040. Its totient is φ = 12155136.

The previous prime is 29420383. The next prime is 29420393. The reversal of 29420384 is 48302492.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 29420384.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29420383) 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 11 ways as a sum of consecutive naturals, for example, 45149 + ... + 45795.

It is an arithmetic number, because the mean of its divisors is an integer number (969570).

Almost surely, 229420384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29420384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34904520).

29420384 is an abundant number, since it is smaller than the sum of its proper divisors (40388656).

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

29420384 is a wasteful number, since it uses less digits than its factorization.

29420384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 29420384 is about 5424.0560469081. The cubic root of 29420384 is about 308.7091099613.

The spelling of 29420384 in words is "twenty-nine million, four hundred twenty thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 29 32 49 56 58 98 112 116 196 203 224 232 392 406 464 647 784 812 928 1294 1421 1568 1624 2588 2842 3248 4529 5176 5684 6496 9058 10352 11368 18116 18763 20704 22736 31703 36232 37526 45472 63406 72464 75052 126812 131341 144928 150104 253624 262682 300208 507248 525364 600416 919387 1014496 1050728 1838774 2101456 3677548 4202912 7355096 14710192 29420384