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29897168 = 2471731543
BaseRepresentation
bin111001000001…
…1000111010000
32002020221012112
41302003013100
530123202133
62544444452
7512056520
oct162030720
962227175
1029897168
1115970204
12a019728
13626a242
143d83680
152958648
hex1c831d0

29897168 has 40 divisors (see below), whose sum is σ = 66626688. Its totient is φ = 12730752.

The previous prime is 29897167. The next prime is 29897207. The reversal of 29897168 is 86179892.

29897168 is nontrivially palindromic in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29897167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18605 + ... + 20147.

Almost surely, 229897168 is an apocalyptic number.

29897168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29897168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33313344).

29897168 is an abundant number, since it is smaller than the sum of its proper divisors (36729520).

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

29897168 is a wasteful number, since it uses less digits than its factorization.

29897168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1725 counting only the distinct ones).

The product of its digits is 435456, while the sum is 50.

The square root of 29897168 is about 5467.8302826624. The cubic root of 29897168 is about 310.3678186958.

The spelling of 29897168 in words is "twenty-nine million, eight hundred ninety-seven thousand, one hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 173 346 692 1211 1384 1543 2422 2768 3086 4844 6172 9688 10801 12344 19376 21602 24688 43204 86408 172816 266939 533878 1067756 1868573 2135512 3737146 4271024 7474292 14948584 29897168