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53128960417 = 13431275771297
BaseRepresentation
bin110001011110101110…
…111001100110100001
312002010122111211101201
4301132232321212201
51332302003213132
640223534001201
73560404466221
oct613656714641
9162118454351
1053128960417
1120593a05355
12a368946201
1350190977b0
142800106081
1515ae40e2e7
hexc5ebb99a1

53128960417 has 32 divisors (see below), whose sum is σ = 59155238912. Its totient is φ = 47405481984.

The previous prime is 53128960403. The next prime is 53128960459. The reversal of 53128960417 is 71406982135.

It is a 5-Lehmer number, since φ(53128960417) divides (53128960417-1)5.

It is a cyclic number.

It is not a de Polignac number, because 53128960417 - 211 = 53128958369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53128960477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40962313 + ... + 40963609.

It is an arithmetic number, because the mean of its divisors is an integer number (1848601216).

It is a 2-persistent number, because it is pandigital, and so is 2⋅53128960417 = 106257920834, but 3⋅53128960417 = 159386881251 is not.

Almost surely, 253128960417 is an apocalyptic number.

It is an amenable number.

53128960417 is a deficient number, since it is larger than the sum of its proper divisors (6026278495).

53128960417 is a wasteful number, since it uses less digits than its factorization.

53128960417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 53128960417 in words is "fifty-three billion, one hundred twenty-eight million, nine hundred sixty thousand, four hundred seventeen".

Divisors: 1 13 43 127 559 577 1297 1651 5461 7501 16861 24811 55771 70993 73279 164719 322543 725023 748369 952627 2141347 3150997 7082917 9728797 32179867 40962961 92077921 95042863 418338271 1235557219 4086843109 53128960417