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29972382 = 23111034409
BaseRepresentation
bin111001001010…
…1011110011110
32002101202101020
41302111132132
530133104012
62550225010
7512522016
oct162253636
962352336
1029972382
1115a11770
12a055166
13629554b
143da2c46
152970a8c
hex1c9579e

29972382 has 32 divisors (see below), whose sum is σ = 66044160. Its totient is φ = 8992320.

The previous prime is 29972359. The next prime is 29972389. The reversal of 29972382 is 28327992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29972389) 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, 4594 + ... + 9002.

It is an arithmetic number, because the mean of its divisors is an integer number (2063880).

Almost surely, 229972382 is an apocalyptic number.

29972382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 29972382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33022080).

29972382 is an abundant number, since it is smaller than the sum of its proper divisors (36071778).

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

29972382 is a wasteful number, since it uses less digits than its factorization.

29972382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528.

The product of its digits is 108864, while the sum is 42.

The square root of 29972382 is about 5474.7038276057. The cubic root of 29972382 is about 310.6278707123.

The spelling of 29972382 in words is "twenty-nine million, nine hundred seventy-two thousand, three hundred eighty-two".

Divisors: 1 2 3 6 11 22 33 66 103 206 309 618 1133 2266 3399 4409 6798 8818 13227 26454 48499 96998 145497 290994 454127 908254 1362381 2724762 4995397 9990794 14986191 29972382