Search a number
-
+
29037728 = 254347449
BaseRepresentation
bin110111011000…
…1010010100000
32000122021021102
41232301102200
524413201403
62514213532
7501550046
oct156612240
960567242
1029037728
1115433525
1298842a8
136028cb5
143bdc396
152838b88
hex1bb14a0

29037728 has 48 divisors (see below), whose sum is σ = 59875200. Its totient is φ = 13848576.

The previous prime is 29037713. The next prime is 29037737. The reversal of 29037728 is 82773092.

It is a junction number, because it is equal to n+sod(n) for n = 29037691 and 29037700.

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 7 ways as a sum of consecutive naturals, for example, 64448 + ... + 64896.

It is an arithmetic number, because the mean of its divisors is an integer number (1247400).

Almost surely, 229037728 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 29037728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29937600).

29037728 is an abundant number, since it is smaller than the sum of its proper divisors (30837472).

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

29037728 is a wasteful number, since it uses less digits than its factorization.

29037728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 29037728 is about 5388.6666254279. Note that the first 4 decimals coincide. The cubic root of 29037728 is about 307.3648574416.

The spelling of 29037728 in words is "twenty-nine million, thirty-seven thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 16 32 43 47 86 94 172 188 344 376 449 688 752 898 1376 1504 1796 2021 3592 4042 7184 8084 14368 16168 19307 21103 32336 38614 42206 64672 77228 84412 154456 168824 308912 337648 617824 675296 907429 1814858 3629716 7259432 14518864 29037728