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53304420020 = 2253185974871
BaseRepresentation
bin110001101001001100…
…001110011010110100
312002120212200002201112
4301221030032122310
51333131412420040
640253202414152
73564635044235
oct615114163264
9162525602645
1053304420020
1120673a56795
12a3b7661358
13504653bb47
14281953b08c
1515bea1c365
hexc6930e6b4

53304420020 has 24 divisors (see below), whose sum is σ = 115550227968. Its totient is φ = 20633968800.

The previous prime is 53304419999. The next prime is 53304420089. The reversal of 53304420020 is 2002440335.

It is a super-2 number, since 2×533044200202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42986816 + ... + 42988055.

It is an arithmetic number, because the mean of its divisors is an integer number (4814592832).

Almost surely, 253304420020 is an apocalyptic number.

It is an amenable number.

53304420020 is an abundant number, since it is smaller than the sum of its proper divisors (62245807948).

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

53304420020 is a wasteful number, since it uses less digits than its factorization.

53304420020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85974911 (or 85974909 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

Adding to 53304420020 its reverse (2002440335), we get a palindrome (55306860355).

The spelling of 53304420020 in words is "fifty-three billion, three hundred four million, four hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 85974871 171949742 343899484 429874355 859748710 1719497420 2665221001 5330442002 10660884004 13326105005 26652210010 53304420020