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53212304020 = 22519541925841
BaseRepresentation
bin110001100011101100…
…110101001010010100
312002100110100010022211
4301203230311022110
51332434322212040
640240112203204
73562436056411
oct614354651224
9162313303284
1053212304020
1120626a5a667
12a390839504
135030428a35
14280b1dd108
1515b68c38ea
hexc63b35294

53212304020 has 48 divisors (see below), whose sum is σ = 117653457600. Its totient is φ = 20160161280.

The previous prime is 53212303999. The next prime is 53212304083. The reversal of 53212304020 is 2040321235.

It is a junction number, because it is equal to n+sod(n) for n = 53212303982 and 53212304000.

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 15 ways as a sum of consecutive naturals, for example, 2046300 + ... + 2072140.

It is an arithmetic number, because the mean of its divisors is an integer number (2451113700).

Almost surely, 253212304020 is an apocalyptic number.

It is an amenable number.

53212304020 is an abundant number, since it is smaller than the sum of its proper divisors (64441153580).

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

53212304020 is a wasteful number, since it uses less digits than its factorization.

53212304020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31288 (or 31286 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 53212304020 its reverse (2040321235), we get a palindrome (55252625255).

The spelling of 53212304020 in words is "fifty-three billion, two hundred twelve million, three hundred four thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 5419 10838 21676 25841 27095 51682 54190 102961 103364 108380 129205 205922 258410 411844 490979 514805 516820 981958 1029610 1963916 2059220 2454895 4909790 9819580 140032379 280064758 560129516 700161895 1400323790 2660615201 2800647580 5321230402 10642460804 13303076005 26606152010 53212304020