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13010010020 = 2257197471719
BaseRepresentation
bin11000001110111010…
…01111111110100100
31020120200121222121222
430013131033332210
5203121030310040
65550545355512
7640254155240
oct140735177644
936520558558
1013010010020
1155768a20a7
122631038b98
1312c4497ca7
148b5c13420
1551227cbb5
hex30774ffa4

13010010020 has 48 divisors (see below), whose sum is σ = 31382588160. Its totient is φ = 4437922944.

The previous prime is 13010010017. The next prime is 13010010029. The reversal of 13010010020 is 2001001031.

It is not an unprimeable number, because it can be changed into a prime (13010010029) 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, 208280 + ... + 263439.

It is an arithmetic number, because the mean of its divisors is an integer number (653803920).

Almost surely, 213010010020 is an apocalyptic number.

13010010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13010010020 is an abundant number, since it is smaller than the sum of its proper divisors (18372578140).

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

13010010020 is a wasteful number, since it uses less digits than its factorization.

13010010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471932 (or 471930 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 13010010020 its reverse (2001001031), we get a palindrome (15011011051).

The spelling of 13010010020 in words is "thirteen billion, ten million, ten thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 197 394 788 985 1379 1970 2758 3940 5516 6895 13790 27580 471719 943438 1886876 2358595 3302033 4717190 6604066 9434380 13208132 16510165 33020330 66040660 92928643 185857286 371714572 464643215 650500501 929286430 1301001002 1858572860 2602002004 3252502505 6505005010 13010010020