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29133288 = 23324171139
BaseRepresentation
bin110111100100…
…0100111101000
32000211010100200
41233020213220
524424231123
62520232200
7502425462
oct157104750
960733320
1029133288
11154992a8
12990b660
136060642
143c25132
152857143
hex1bc89e8

29133288 has 96 divisors (see below), whose sum is σ = 82555200. Its totient is φ = 9273600.

The previous prime is 29133287. The next prime is 29133301. The reversal of 29133288 is 88233192.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (20736) is a multiple of the sum of its prime divisors (256).

It is not an unprimeable number, because it can be changed into a prime (29133281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209523 + ... + 209661.

It is an arithmetic number, because the mean of its divisors is an integer number (859950).

Almost surely, 229133288 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 29133288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41277600).

29133288 is an abundant number, since it is smaller than the sum of its proper divisors (53421912).

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

29133288 is a wasteful number, since it uses less digits than its factorization.

29133288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 256 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 29133288 is about 5397.5260999832. The cubic root of 29133288 is about 307.7016563442.

The spelling of 29133288 in words is "twenty-nine million, one hundred thirty-three thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 41 71 72 82 123 139 142 164 213 246 278 284 328 369 417 426 492 556 568 639 738 834 852 984 1112 1251 1278 1476 1668 1704 2502 2556 2911 2952 3336 5004 5112 5699 5822 8733 9869 10008 11398 11644 17097 17466 19738 22796 23288 26199 29607 34194 34932 39476 45592 51291 52398 59214 68388 69864 78952 88821 102582 104796 118428 136776 177642 205164 209592 236856 355284 404629 410328 710568 809258 1213887 1618516 2427774 3237032 3641661 4855548 7283322 9711096 14566644 29133288