Search a number
-
+
2120343144 = 23388347631
BaseRepresentation
bin111111001100001…
…1101111001101000
312110202210120222120
41332120131321220
513320301440034
6550222151240
7103354422303
oct17630357150
95422716876
102120343144
11998973207
124b2122520
1327a39151a
14161863b3a
15c6234c49
hex7e61de68

2120343144 has 16 divisors (see below), whose sum is σ = 5300857920. Its totient is φ = 706781040.

The previous prime is 2120343131. The next prime is 2120343151. The reversal of 2120343144 is 4413430212.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 88347631 = 2120343144 / (2 + 1 + 2 + 0 + 3 + 4 + 3 + 1 + 4 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44173792 + ... + 44173839.

It is an arithmetic number, because the mean of its divisors is an integer number (331303620).

Almost surely, 22120343144 is an apocalyptic number.

2120343144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2120343144 is an abundant number, since it is smaller than the sum of its proper divisors (3180514776).

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

2120343144 is a wasteful number, since it uses less digits than its factorization.

2120343144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88347640 (or 88347636 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2120343144 is about 46047.1838878340. The cubic root of 2120343144 is about 1284.7009642949.

Adding to 2120343144 its reverse (4413430212), we get a palindrome (6533773356).

The spelling of 2120343144 in words is "two billion, one hundred twenty million, three hundred forty-three thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 88347631 176695262 265042893 353390524 530085786 706781048 1060171572 2120343144