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2144135210 = 257231331761
BaseRepresentation
bin111111111001100…
…1110100000101010
312112102120100120012
41333303032200222
513342344311320
6552432131522
7104063564030
oct17763164052
95472510505
102144135210
11a00343578
124ba096ba2
132822a1979
14164a98550
15c83844c5
hex7fcce82a

2144135210 has 32 divisors (see below), whose sum is σ = 4602569472. Its totient is φ = 703169280.

The previous prime is 2144135209. The next prime is 2144135219. The reversal of 2144135210 is 125314412.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (2144135219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664271 + ... + 667490.

It is an arithmetic number, because the mean of its divisors is an integer number (143830296).

Almost surely, 22144135210 is an apocalyptic number.

2144135210 is an abundant number, since it is smaller than the sum of its proper divisors (2458434262).

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

2144135210 is a wasteful number, since it uses less digits than its factorization.

2144135210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331798.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2144135210 is about 46304.8076337652. The cubic root of 2144135210 is about 1289.4882512333.

Adding to 2144135210 its reverse (125314412), we get a palindrome (2269449622).

The spelling of 2144135210 in words is "two billion, one hundred forty-four million, one hundred thirty-five thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 1331761 2663522 6658805 9322327 13317610 18644654 30630503 46611635 61261006 93223270 153152515 214413521 306305030 428827042 1072067605 2144135210