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29120144000 = 27531820009
BaseRepresentation
bin11011000111101100…
…100010001010000000
32210011102200120211212
4123013230202022000
5434114224102000
621213321425252
72050424066003
oct330754421200
983142616755
1029120144000
1111393620212
12578833b228
13299100254c
1415a365353a
15b5677ac35
hex6c7b22280

29120144000 has 64 divisors (see below), whose sum is σ = 72399997800. Its totient is φ = 11648051200.

The previous prime is 29120143979. The next prime is 29120144023. The reversal of 29120144000 is 44102192.

It can be written as a sum of positive squares in 4 ways, for example, as 8894753344 + 20225390656 = 94312^2 + 142216^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894005 + ... + 926004.

Almost surely, 229120144000 is an apocalyptic number.

29120144000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29120144000 is an abundant number, since it is smaller than the sum of its proper divisors (43279853800).

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

29120144000 is an equidigital number, since it uses as much as digits as its factorization.

29120144000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820038 (or 1820016 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 29120144000 its reverse (44102192), we get a palindrome (29164246192).

The spelling of 29120144000 in words is "twenty-nine billion, one hundred twenty million, one hundred forty-four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 640 800 1000 1600 2000 3200 4000 8000 16000 1820009 3640018 7280036 9100045 14560072 18200090 29120144 36400180 45500225 58240288 72800360 91000450 116480576 145600720 182000900 227501125 232961152 291201440 364001800 455002250 582402880 728003600 910004500 1164805760 1456007200 1820009000 2912014400 3640018000 5824028800 7280036000 14560072000 29120144000