Search a number
-
+
64444302104031 = 35918128886057
BaseRepresentation
bin11101010011100100110111…
…01111000001010111011111
322110011211000012212122200000
432221302123233001113133
531421323412314312111
6345021145332305343
716400642611501653
oct1651623357012737
9273154005778600
1064444302104031
1119596747529593
1272898a2472253
1329c60c14428a5
1411cb19991aa63
1576b52698ac56
hex3a9c9bbc15df

64444302104031 has 24 divisors (see below), whose sum is σ = 96544369578384. Its totient is φ = 42958187040960.

The previous prime is 64444302104023. The next prime is 64444302104033. The reversal of 64444302104031 is 13040120344446.

64444302104031 is a `hidden beast` number, since 6 + 4 + 4 + 4 + 4 + 30 + 210 + 403 + 1 = 666.

It is not a de Polignac number, because 64444302104031 - 23 = 64444302104023 is a prime.

It is a super-2 number, since 2×644443021040312 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64444302104033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12212046 + ... + 16674011.

It is an arithmetic number, because the mean of its divisors is an integer number (4022682065766).

Almost surely, 264444302104031 is an apocalyptic number.

64444302104031 is a deficient number, since it is larger than the sum of its proper divisors (32100067474353).

64444302104031 is an equidigital number, since it uses as much as digits as its factorization.

64444302104031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28895253 (or 28895241 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 64444302104031 its reverse (13040120344446), we get a palindrome (77484422448477).

The spelling of 64444302104031 in words is "sixty-four trillion, four hundred forty-four billion, three hundred two million, one hundred four thousand, thirty-one".

Divisors: 1 3 9 27 81 243 9181 27543 82629 247887 743661 2230983 28886057 86658171 259974513 779923539 2339770617 7019311851 265202889317 795608667951 2386826003853 7160478011559 21481434034677 64444302104031