Search a number
-
+
2143100512 = 25717562789
BaseRepresentation
bin111111110111101…
…0001111001100000
312112100121210020001
41333233101321200
513342113204022
6552354025344
7104052024310
oct17757217140
95470553201
102143100512
119aa7a7153
124b9878254
13281ccba17
141648a9440
15c822cb27
hex7fbd1e60

2143100512 has 48 divisors (see below), whose sum is σ = 5105630880. Its totient is φ = 864442368.

The previous prime is 2143100507. The next prime is 2143100513. The reversal of 2143100512 is 2150013412.

It is a self number, because there is not a number n which added to its sum of digits gives 2143100512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143100513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277587 + ... + 285202.

It is an arithmetic number, because the mean of its divisors is an integer number (106367310).

Almost surely, 22143100512 is an apocalyptic number.

It is an amenable number.

2143100512 is an abundant number, since it is smaller than the sum of its proper divisors (2962530368).

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

2143100512 is a wasteful number, since it uses less digits than its factorization.

2143100512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562823 (or 562815 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2143100512 is about 46293.6336011767. The cubic root of 2143100512 is about 1289.2807945415.

Adding to 2143100512 its reverse (2150013412), we get a palindrome (4293113924).

The spelling of 2143100512 in words is "two billion, one hundred forty-three million, one hundred thousand, five hundred twelve".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 68 112 119 136 224 238 272 476 544 952 1904 3808 562789 1125578 2251156 3939523 4502312 7879046 9004624 9567413 15758092 18009248 19134826 31516184 38269652 63032368 66971891 76539304 126064736 133943782 153078608 267887564 306157216 535775128 1071550256 2143100512