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13010401644 = 2239713278423
BaseRepresentation
bin11000001110111101…
…01111100101101100
31020120201100212211120
430013132233211230
5203121130323034
65551002020540
7640260406062
oct140736574554
936521325746
1013010401644
11557703a359
1226311a7750
1312c45a4316
148b5cb6032
15512308c49
hex3077af96c

13010401644 has 48 divisors (see below), whose sum is σ = 30697325568. Its totient is φ = 4288347648.

The previous prime is 13010401627. The next prime is 13010401669. The reversal of 13010401644 is 44610401031.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1540417 + ... + 1548839.

It is an arithmetic number, because the mean of its divisors is an integer number (639527616).

Almost surely, 213010401644 is an apocalyptic number.

It is an amenable number.

13010401644 is an abundant number, since it is smaller than the sum of its proper divisors (17686923924).

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

13010401644 is a wasteful number, since it uses less digits than its factorization.

13010401644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9854 (or 9852 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 13010401644 its reverse (44610401031), we get a palindrome (57620802675).

The spelling of 13010401644 in words is "thirteen billion, ten million, four hundred one thousand, six hundred forty-four".

Divisors: 1 2 3 4 6 12 97 194 291 388 582 1164 1327 2654 3981 5308 7962 8423 15924 16846 25269 33692 50538 101076 128719 257438 386157 514876 772314 817031 1544628 1634062 2451093 3268124 4902186 9804372 11177321 22354642 33531963 44709284 67063926 134127852 1084200137 2168400274 3252600411 4336800548 6505200822 13010401644