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52128483547880 = 2351303212088697
BaseRepresentation
bin10111101101001000110111…
…01111101001101011101000
320211120102201122110121111102
423312210123233221223220
523313033113242013010
6302511254510420532
713660105263154265
oct1366443357515350
9224512648417442
1052128483547880
1115678624a81093
125a1aa23801748
13231190592930c
14cc3063dba26c
15605eac7a6ba5
hex2f691bbe9ae8

52128483547880 has 16 divisors (see below), whose sum is σ = 117289087982820. Its totient is φ = 20851393419136.

The previous prime is 52128483547859. The next prime is 52128483547891. The reversal of 52128483547880 is 8874538482125.

It can be written as a sum of positive squares in 2 ways, for example, as 47263397526244 + 4865086021636 = 6874838^2 + 2205694^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651606044309 + ... + 651606044388.

Almost surely, 252128483547880 is an apocalyptic number.

It is an amenable number.

52128483547880 is an abundant number, since it is smaller than the sum of its proper divisors (65160604434940).

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

52128483547880 is a wasteful number, since it uses less digits than its factorization.

52128483547880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303212088708 (or 1303212088704 counting only the distinct ones).

The product of its (nonzero) digits is 137625600, while the sum is 65.

The spelling of 52128483547880 in words is "fifty-two trillion, one hundred twenty-eight billion, four hundred eighty-three million, five hundred forty-seven thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1303212088697 2606424177394 5212848354788 6516060443485 10425696709576 13032120886970 26064241773940 52128483547880