Search a number
-
+
12401345388 = 2232617394897
BaseRepresentation
bin10111000110010110…
…11000001101101100
31012000021022121201110
423203023120031230
5200344221023023
65410323512020
7616213460625
oct134313301554
935007277643
1012401345388
115294266383
1224a1228610
1312283575c3
14859052a4c
154c8aeca93
hex2e32d836c

12401345388 has 24 divisors (see below), whose sum is σ = 28947602992. Its totient is φ = 4132191744.

The previous prime is 12401345381. The next prime is 12401345401. The reversal of 12401345388 is 88354310421.

12401345388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12401345381) by changing a digit.

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, 166045 + ... + 228852.

Almost surely, 212401345388 is an apocalyptic number.

It is an amenable number.

12401345388 is an abundant number, since it is smaller than the sum of its proper divisors (16546257604).

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

12401345388 is a wasteful number, since it uses less digits than its factorization.

12401345388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397521 (or 397519 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 12401345388 in words is "twelve billion, four hundred one million, three hundred forty-five thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 2617 5234 7851 10468 15702 31404 394897 789794 1184691 1579588 2369382 4738764 1033445449 2066890898 3100336347 4133781796 6200672694 12401345388