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53052520520 = 2351641780789
BaseRepresentation
bin110001011010001011…
…010011100001001000
312001221022200021120102
4301122023103201020
51332122421124040
640212203344532
73555455661326
oct613213234110
9161838607512
1053052520520
112055484598a
12a347222148
1350062b299c
1427d3cc8d16
1515a7860515
hexc5a2d3848

53052520520 has 32 divisors (see below), whose sum is σ = 119376919800. Its totient is φ = 21219452928.

The previous prime is 53052520513. The next prime is 53052520531. The reversal of 53052520520 is 2502525035.

It can be written as a sum of positive squares in 4 ways, for example, as 24200780356 + 28851740164 = 155566^2 + 169858^2 .

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, 616286 + ... + 697074.

Almost surely, 253052520520 is an apocalyptic number.

It is an amenable number.

53052520520 is an abundant number, since it is smaller than the sum of its proper divisors (66324399280).

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

53052520520 is a wasteful number, since it uses less digits than its factorization.

53052520520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97217 (or 97213 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The spelling of 53052520520 in words is "fifty-three billion, fifty-two million, five hundred twenty thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 16417 32834 65668 80789 82085 131336 161578 164170 323156 328340 403945 646312 656680 807890 1615780 3231560 1326313013 2652626026 5305252052 6631565065 10610504104 13263130130 26526260260 53052520520