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1210331030 = 25435727779
BaseRepresentation
bin100100000100100…
…0010111110010110
310010100110012001012
41020021002332112
54434321043110
6320033332222
741664433616
oct11011027626
93110405035
101210331030
11571222687
12299407072
131639a090c
14b6a5ca46
15713cb905
hex48242f96

1210331030 has 16 divisors (see below), whose sum is σ = 2179174320. Its totient is φ = 484003872.

The previous prime is 1210331011. The next prime is 1210331033. The reversal of 1210331030 is 301330121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1210330996 and 1210331014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210331033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29681 + ... + 57459.

It is an arithmetic number, because the mean of its divisors is an integer number (136198395).

Almost surely, 21210331030 is an apocalyptic number.

1210331030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210331030 is a deficient number, since it is larger than the sum of its proper divisors (968843290).

1210331030 is a wasteful number, since it uses less digits than its factorization.

1210331030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32143.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1210331030 is about 34789.8121581592. The cubic root of 1210331030 is about 1065.6994031978.

Adding to 1210331030 its reverse (301330121), we get a palindrome (1511661151).

Subtracting from 1210331030 its reverse (301330121), we obtain a palindrome (909000909).

The spelling of 1210331030 in words is "one billion, two hundred ten million, three hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 4357 8714 21785 27779 43570 55558 138895 277790 121033103 242066206 605165515 1210331030