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13101302020 = 225655065101
BaseRepresentation
bin11000011001110011…
…00000000100000100
31020211001102002201011
430030321200010010
5203312413131040
610004010212004
7642443141542
oct141471400404
936731362634
1013101302020
115613386134
122657724004
13130a380021
148c3db8d92
1551a2b23ea
hex30ce60104

13101302020 has 12 divisors (see below), whose sum is σ = 27512734284. Its totient is φ = 5240520800.

The previous prime is 13101301999. The next prime is 13101302033. The reversal of 13101302020 is 2020310131.

It can be written as a sum of positive squares in 2 ways, for example, as 4920461316 + 8180840704 = 70146^2 + 90448^2 .

It is a super-2 number, since 2×131013020202 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327532531 + ... + 327532570.

It is an arithmetic number, because the mean of its divisors is an integer number (2292727857).

Almost surely, 213101302020 is an apocalyptic number.

13101302020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13101302020 is an abundant number, since it is smaller than the sum of its proper divisors (14411432264).

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

13101302020 is a wasteful number, since it uses less digits than its factorization.

13101302020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655065110 (or 655065108 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 13101302020 its reverse (2020310131), we get a palindrome (15121612151).

The spelling of 13101302020 in words is "thirteen billion, one hundred one million, three hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 655065101 1310130202 2620260404 3275325505 6550651010 13101302020