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12948489012 = 22310730833271
BaseRepresentation
bin11000000111100101…
…00100001100110100
31020102101212101200010
430003302210030310
5203004303122022
65540511020220
7635606224554
oct140362441464
936371771603
1012948489012
1155450a2498
12261450a670
1312b4807924
148ab99b164
1550bb7950c
hex303ca4334

12948489012 has 48 divisors (see below), whose sum is σ = 30514724352. Its totient is φ = 4273131360.

The previous prime is 12948489007. The next prime is 12948489013. The reversal of 12948489012 is 21098484921.

It is a super-2 number, since 2×129484890122 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12948489013) 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, 3956937 + ... + 3960207.

It is an arithmetic number, because the mean of its divisors is an integer number (635723424).

Almost surely, 212948489012 is an apocalyptic number.

12948489012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12948489012 is an abundant number, since it is smaller than the sum of its proper divisors (17566235340).

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

12948489012 is a wasteful number, since it uses less digits than its factorization.

12948489012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6468 (or 6466 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 48.

The spelling of 12948489012 in words is "twelve billion, nine hundred forty-eight million, four hundred eighty-nine thousand, twelve".

Divisors: 1 2 3 4 6 12 107 214 321 428 642 1284 3083 3271 6166 6542 9249 9813 12332 13084 18498 19626 36996 39252 329881 349997 659762 699994 989643 1049991 1319524 1399988 1979286 2099982 3958572 4199964 10084493 20168986 30253479 40337972 60506958 121013916 1079040751 2158081502 3237122253 4316163004 6474244506 12948489012