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29989232 = 2471343479
BaseRepresentation
bin111001001100…
…1100101110000
32002102121111022
41302121211300
530134123412
62550435012
7512622110
oct162314560
962377438
1029989232
1115a23399
12a062a68
1362a0110
143da9040
152975a72
hex1c99970

29989232 has 80 divisors (see below), whose sum is σ = 73328640. Its totient is φ = 11563776.

The previous prime is 29989213. The next prime is 29989237. The reversal of 29989232 is 23298992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29989237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62369 + ... + 62847.

It is an arithmetic number, because the mean of its divisors is an integer number (916608).

Almost surely, 229989232 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 29989232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36664320).

29989232 is an abundant number, since it is smaller than the sum of its proper divisors (43339408).

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

29989232 is a wasteful number, since it uses less digits than its factorization.

29989232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 544 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 29989232 is about 5476.2425074133. The cubic root of 29989232 is about 310.6860698359.

The spelling of 29989232 in words is "twenty-nine million, nine hundred eighty-nine thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 13 14 16 26 28 43 52 56 86 91 104 112 172 182 208 301 344 364 479 559 602 688 728 958 1118 1204 1456 1916 2236 2408 3353 3832 3913 4472 4816 6227 6706 7664 7826 8944 12454 13412 15652 20597 24908 26824 31304 41194 43589 49816 53648 62608 82388 87178 99632 144179 164776 174356 267761 288358 329552 348712 535522 576716 697424 1071044 1153432 1874327 2142088 2306864 3748654 4284176 7497308 14994616 29989232