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20533141344 = 253251852139
BaseRepresentation
bin10011000111110111…
…101101111101100000
31221222222201122200110
4103013313231331200
5314022441010334
613233252251320
71324554551562
oct230767557540
957888648613
1020533141344
118787472001
123b90610b40
131c22c947a1
14dcb027332
1580297dae9
hex4c7dedf60

20533141344 has 48 divisors (see below), whose sum is σ = 54114298560. Its totient is φ = 6817104000.

The previous prime is 20533141339. The next prime is 20533141351. The reversal of 20533141344 is 44314133502.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 401974 + ... + 450165.

It is an arithmetic number, because the mean of its divisors is an integer number (1127381220).

Almost surely, 220533141344 is an apocalyptic number.

20533141344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20533141344 is an abundant number, since it is smaller than the sum of its proper divisors (33581157216).

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

20533141344 is a wasteful number, since it uses less digits than its factorization.

20533141344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852403 (or 852395 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 20533141344 its reverse (44314133502), we get a palindrome (64847274846).

The spelling of 20533141344 in words is "twenty billion, five hundred thirty-three million, one hundred forty-one thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 251 502 753 1004 1506 2008 3012 4016 6024 8032 12048 24096 852139 1704278 2556417 3408556 5112834 6817112 10225668 13634224 20451336 27268448 40902672 81805344 213886889 427773778 641660667 855547556 1283321334 1711095112 2566642668 3422190224 5133285336 6844380448 10266570672 20533141344