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13313222020 = 2257234134541
BaseRepresentation
bin11000110011000011…
…11010010110000100
31021100211011202022001
430121201322112010
5204231141101040
610041020315044
7650625343240
oct143141722604
937324152261
1013313222020
115711a6a82a
1226b66a2a84
13134224ba87
149041c1420
1552dbc359a
hex31987a584

13313222020 has 48 divisors (see below), whose sum is σ = 33340946688. Its totient is φ = 4366074240.

The previous prime is 13313222017. The next prime is 13313222023. The reversal of 13313222020 is 2022231331.

It is an interprime number because it is at equal distance from previous prime (13313222017) and next prime (13313222023).

It is not an unprimeable number, because it can be changed into a prime (13313222023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2064051 + ... + 2070490.

It is an arithmetic number, because the mean of its divisors is an integer number (694603056).

Almost surely, 213313222020 is an apocalyptic number.

13313222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13313222020 is an abundant number, since it is smaller than the sum of its proper divisors (20027724668).

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

13313222020 is a wasteful number, since it uses less digits than its factorization.

13313222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134580 (or 4134578 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13313222020 its reverse (2022231331), we get a palindrome (15335453351).

The spelling of 13313222020 in words is "thirteen billion, three hundred thirteen million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 4134541 8269082 16538164 20672705 28941787 41345410 57883574 82690820 95094443 115767148 144708935 190188886 289417870 380377772 475472215 578835740 665661101 950944430 1331322202 1901888860 2662644404 3328305505 6656611010 13313222020