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13022011212 = 2237155023943
BaseRepresentation
bin11000010000010110…
…00001111101001100
31020121112012201011120
430020023001331030
5203132113324322
65552054520540
7640461161160
oct141013017514
936545181146
1013022011212
115582649841
122635066150
1312c6b0a6a2
148b7658ca0
1551334da5c
hex3082c1f4c

13022011212 has 24 divisors (see below), whose sum is σ = 34725363456. Its totient is φ = 3720574608.

The previous prime is 13022011207. The next prime is 13022011231. The reversal of 13022011212 is 21211022031.

It is a junction number, because it is equal to n+sod(n) for n = 13022011191 and 13022011200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77511888 + ... + 77512055.

It is an arithmetic number, because the mean of its divisors is an integer number (1446890144).

Almost surely, 213022011212 is an apocalyptic number.

13022011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13022011212 is an abundant number, since it is smaller than the sum of its proper divisors (21703352244).

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

13022011212 is a wasteful number, since it uses less digits than its factorization.

13022011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155023957 (or 155023955 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 13022011212 its reverse (21211022031), we get a palindrome (34233033243).

The spelling of 13022011212 in words is "thirteen billion, twenty-two million, eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 155023943 310047886 465071829 620095772 930143658 1085167601 1860287316 2170335202 3255502803 4340670404 6511005606 13022011212