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2154524412 = 2235314932269
BaseRepresentation
bin1000000001101011…
…0110111011111100
312120011010011212110
42000122312323330
513403024240122
6553442534020
7104251104165
oct20032667374
95504104773
102154524412
11a0619a097
12501667310
1328449b721
1416620076c
15c923790c
hex806b6efc

2154524412 has 48 divisors (see below), whose sum is σ = 5127766560. Its totient is φ = 703842048.

The previous prime is 2154524401. The next prime is 2154524413. The reversal of 2154524412 is 2144254512.

It is a self number, because there is not a number n which added to its sum of digits gives 2154524412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154524413) 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 15 ways as a sum of consecutive naturals, for example, 948414 + ... + 950682.

It is an arithmetic number, because the mean of its divisors is an integer number (106828470).

Almost surely, 22154524412 is an apocalyptic number.

It is an amenable number.

2154524412 is an abundant number, since it is smaller than the sum of its proper divisors (2973242148).

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

2154524412 is a wasteful number, since it uses less digits than its factorization.

2154524412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822 (or 3820 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 2154524412 is about 46416.8548266683. The cubic root of 2154524412 is about 1291.5675937349.

Adding to 2154524412 its reverse (2144254512), we get a palindrome (4298778924).

The spelling of 2154524412 in words is "two billion, one hundred fifty-four million, five hundred twenty-four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 1493 2269 2986 4479 4538 5972 6807 8958 9076 13614 17916 27228 79129 120257 158258 237387 240514 316516 360771 474774 481028 721542 949548 1443084 3387617 6775234 10162851 13550468 20325702 40651404 179543701 359087402 538631103 718174804 1077262206 2154524412