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52813002017680 = 2451653173993313
BaseRepresentation
bin11000000001000011111000…
…01110011000101110010000
320220222212120220201210021221
430000201330032120232100
523410242012004031210
6304153542545054424
714060420265151252
oct1400417416305620
9226885526653257
1052813002017680
1115911960896a23
125b0b61b627414
132361324860ba8
14d0823d151cd2
15618bc262e1da
hex30087c398b90

52813002017680 has 40 divisors (see below), whose sum is σ = 122791003196472. Its totient is φ = 21125067730944.

The previous prime is 52813002017651. The next prime is 52813002017683. The reversal of 52813002017680 is 8671020031825.

It can be written as a sum of positive squares in 4 ways, for example, as 1887480308736 + 50925521708944 = 1373856^2 + 7136212^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (52813002017683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11228704 + ... + 15222016.

Almost surely, 252813002017680 is an apocalyptic number.

It is an amenable number.

52813002017680 is an abundant number, since it is smaller than the sum of its proper divisors (69978001178792).

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

52813002017680 is a wasteful number, since it uses less digits than its factorization.

52813002017680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158643 (or 4158637 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 52813002017680 in words is "fifty-two trillion, eight hundred thirteen billion, two million, seventeen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 165317 330634 661268 826585 1322536 1653170 2645072 3306340 3993313 6612680 7986626 13225360 15973252 19966565 31946504 39933130 63893008 79866260 159732520 319465040 660162525221 1320325050442 2640650100884 3300812626105 5281300201768 6601625252210 10562600403536 13203250504420 26406501008840 52813002017680