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29124144 = 243379631
BaseRepresentation
bin110111100011…
…0011000110000
32000210122211000
41233012120300
524423433034
62520122000
7502360020
oct157063060
960718730
1029124144
1115492445
129906300
13605942a
143c21a80
152854599
hex1bc6630

29124144 has 80 divisors (see below), whose sum is σ = 95549440. Its totient is φ = 8320320.

The previous prime is 29124133. The next prime is 29124181. The reversal of 29124144 is 44142192.

It is a happy number.

It is a super-3 number, since 3×291241443 (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1792 + ... + 7839.

It is an arithmetic number, because the mean of its divisors is an integer number (1194368).

Almost surely, 229124144 is an apocalyptic number.

29124144 is a gapful number since it is divisible by the number (24) 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 29124144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47774720).

29124144 is an abundant number, since it is smaller than the sum of its proper divisors (66425296).

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

29124144 is a wasteful number, since it uses less digits than its factorization.

29124144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9655 (or 9643 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 29124144 is about 5396.6789787794. The cubic root of 29124144 is about 307.6694604318.

It can be divided in two parts, 2912 and 4144, that added together give a square (7056 = 842).

The spelling of 29124144 in words is "twenty-nine million, one hundred twenty-four thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 84 108 112 126 144 168 189 216 252 336 378 432 504 756 1008 1512 3024 9631 19262 28893 38524 57786 67417 77048 86679 115572 134834 154096 173358 202251 231144 260037 269668 346716 404502 462288 520074 539336 606753 693432 809004 1040148 1078672 1213506 1386864 1618008 1820259 2080296 2427012 3236016 3640518 4160592 4854024 7281036 9708048 14562072 29124144