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20321124203052 = 22324816671171921
BaseRepresentation
bin1001001111011011000010…
…11000111011101000101100
32122221200101002022020022200
410213231201120323220230
510130420130243444202
6111115221240141500
74165103254510131
oct447554130735054
978850332266280
1020321124203052
11652515a929792
122342453467890
13b4537369347a
14503794ac4588
152538ebd27e1c
hex127b6163ba2c

20321124203052 has 36 divisors (see below), whose sum is σ = 51367436656536. Its totient is φ = 6773688224640.

The previous prime is 20321124202963. The next prime is 20321124203053. The reversal of 20321124203052 is 25030242112302.

20321124203052 is a `hidden beast` number, since 2 + 0 + 321 + 12 + 4 + 20 + 305 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×203211242030522 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20321124203053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16754052 + ... + 17925972.

Almost surely, 220321124203052 is an apocalyptic number.

It is an amenable number.

20321124203052 is an abundant number, since it is smaller than the sum of its proper divisors (31046312453484).

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

20321124203052 is a wasteful number, since it uses less digits than its factorization.

20321124203052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653598 (or 1653593 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20321124203052 its reverse (25030242112302), we get a palindrome (45351366315354).

The spelling of 20321124203052 in words is "twenty trillion, three hundred twenty-one billion, one hundred twenty-four million, two hundred three thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 481667 963334 1171921 1445001 1926668 2343842 2890002 3515763 4335003 4687684 5780004 7031526 8670006 10547289 14063052 17340012 21094578 42189156 564475672307 1128951344614 1693427016921 2257902689228 3386854033842 5080281050763 6773708067684 10160562101526 20321124203052