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53718259494 = 2321294205281
BaseRepresentation
bin110010000001110110…
…111001011100100110
312010122201101022202110
4302001312321130212
51340003333300434
640402224421450
73611121446304
oct620166713446
9163581338673
1053718259494
1120866614489
12a4b2177886
1350b11b7783
1428584a5274
1515e60164e9
hexc81db9726

53718259494 has 16 divisors (see below), whose sum is σ = 107487007920. Its totient is φ = 17897671680.

The previous prime is 53718259493. The next prime is 53718259519. The reversal of 53718259494 is 49495281735.

53718259494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×537182594942 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53718259493) 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, 2089867 + ... + 2115414.

It is an arithmetic number, because the mean of its divisors is an integer number (6717937995).

Almost surely, 253718259494 is an apocalyptic number.

53718259494 is an abundant number, since it is smaller than the sum of its proper divisors (53768748426).

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

53718259494 is a wasteful number, since it uses less digits than its factorization.

53718259494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207415.

The product of its digits is 10886400, while the sum is 57.

The spelling of 53718259494 in words is "fifty-three billion, seven hundred eighteen million, two hundred fifty-nine thousand, four hundred ninety-four".

Divisors: 1 2 3 6 2129 4258 6387 12774 4205281 8410562 12615843 25231686 8953043249 17906086498 26859129747 53718259494