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53988322802 = 21642992
BaseRepresentation
bin110010010001111101…
…000110110111110010
312011100112112221222012
4302101331012313302
51341032002312202
640445113042522
73620611113011
oct622175066762
9164315487865
1053988322802
1120995000aa7
12a5686b6442
13512513334b
1428822c4a78
15160eab0152
hexc91f46df2

53988322802 has 6 divisors (see below), whose sum is σ = 80982977103. Its totient is φ = 26993997102.

The previous prime is 53988322799. The next prime is 53988322807. The reversal of 53988322802 is 20822388935.

It can be written as a sum of positive squares in only one way, i.e., 26994161401 + 26994161401 = 164299^2 + 164299^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=164299.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53988322807) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 246449 + ... + 410747.

Almost surely, 253988322802 is an apocalyptic number.

53988322802 is a deficient number, since it is larger than the sum of its proper divisors (26994654301).

53988322802 is an frugal number, since it uses more digits than its factorization.

53988322802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328600 (or 164301 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

Multiplying 53988322802 by its sum of digits (50), we get a square (2699416140100 = 16429902).

The spelling of 53988322802 in words is "fifty-three billion, nine hundred eighty-eight million, three hundred twenty-two thousand, eight hundred two".

Divisors: 1 2 164299 328598 26994161401 53988322802