Search a number
-
+
203120231210 = 251311313827109
BaseRepresentation
bin1011110100101011101…
…0001100001100101010
3201102021210112212001022
42331022322030030222
511311442234344320
6233151231252442
720450336323001
oct2751272141452
9642253485038
10203120231210
1179163091086
123344867a122
13162008ab930
149b8c663c38
15543c367325
hex2f4ae8c32a

203120231210 has 32 divisors (see below), whose sum is σ = 397225216080. Its totient is φ = 74334532608.

The previous prime is 203120231207. The next prime is 203120231227. The reversal of 203120231210 is 12132021302.

203120231210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 6776417761 + 196343813449 = 82319^2 + 443107^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6898865 + ... + 6928244.

Almost surely, 2203120231210 is an apocalyptic number.

203120231210 is a deficient number, since it is larger than the sum of its proper divisors (194104984870).

203120231210 is a wasteful number, since it uses less digits than its factorization.

203120231210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13827242.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 203120231210 its reverse (12132021302), we get a palindrome (215252252512).

The spelling of 203120231210 in words is "two hundred three billion, one hundred twenty million, two hundred thirty-one thousand, two hundred ten".

Divisors: 1 2 5 10 13 26 65 113 130 226 565 1130 1469 2938 7345 14690 13827109 27654218 69135545 138271090 179752417 359504834 898762085 1562463317 1797524170 3124926634 7812316585 15624633170 20312023121 40624046242 101560115605 203120231210