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29167920 = 24325172383
BaseRepresentation
bin110111101000…
…1000100110000
32000212212212100
41233101010300
524431333140
62521100400
7502631445
oct157210460
960785770
1029167920
1115512321
129927700
136073332
143c339cc
152862530
hex1bd1130

29167920 has 120 divisors (see below), whose sum is σ = 103761216. Its totient is φ = 7317504.

The previous prime is 29167867. The next prime is 29167921. The reversal of 29167920 is 2976192.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is not an unprimeable number, because it can be changed into a prime (29167921) 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 23 ways as a sum of consecutive naturals, for example, 11049 + ... + 13431.

Almost surely, 229167920 is an apocalyptic number.

29167920 is a gapful number since it is divisible by the number (20) 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 29167920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51880608).

29167920 is an abundant number, since it is smaller than the sum of its proper divisors (74593296).

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

29167920 is a wasteful number, since it uses less digits than its factorization.

29167920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419 (or 2410 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 29167920 is about 5400.7332835459. The cubic root of 29167920 is about 307.8235341540.

The spelling of 29167920 in words is "twenty-nine million, one hundred sixty-seven thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 34 36 40 45 48 51 60 68 72 80 85 90 102 120 136 144 153 170 180 204 240 255 272 306 340 360 408 510 612 680 720 765 816 1020 1224 1360 1530 2040 2383 2448 3060 4080 4766 6120 7149 9532 11915 12240 14298 19064 21447 23830 28596 35745 38128 40511 42894 47660 57192 71490 81022 85788 95320 107235 114384 121533 142980 162044 171576 190640 202555 214470 243066 285960 324088 343152 364599 405110 428940 486132 571920 607665 648176 729198 810220 857880 972264 1215330 1458396 1620440 1715760 1822995 1944528 2430660 2916792 3240880 3645990 4861320 5833584 7291980 9722640 14583960 29167920