Search a number
-
+
12452451020 = 225896995759
BaseRepresentation
bin10111001100011100…
…10101001011001100
31012010211111001110122
423212032111023030
5201000311413040
65415351124112
7620404041632
oct134616251314
935124431418
1012452451020
1153100a1839
1224b6373638
131235b0c019
14861b57352
154cd3451b5
hex2e63952cc

12452451020 has 24 divisors (see below), whose sum is σ = 26443972800. Its totient is φ = 4925013632.

The previous prime is 12452451017. The next prime is 12452451083. The reversal of 12452451020 is 2015425421.

12452451020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3496100 + ... + 3499659.

It is an arithmetic number, because the mean of its divisors is an integer number (1101832200).

Almost surely, 212452451020 is an apocalyptic number.

12452451020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12452451020 is an abundant number, since it is smaller than the sum of its proper divisors (13991521780).

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

12452451020 is a wasteful number, since it uses less digits than its factorization.

12452451020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6995857 (or 6995855 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 12452451020 its reverse (2015425421), we get a palindrome (14467876441).

The spelling of 12452451020 in words is "twelve billion, four hundred fifty-two million, four hundred fifty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 6995759 13991518 27983036 34978795 69957590 139915180 622622551 1245245102 2490490204 3113112755 6226225510 12452451020