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1311101230 = 25379345937
BaseRepresentation
bin100111000100101…
…1101000100101110
310101101001211202211
41032021131010232
510141120214410
6334033241034
744330114365
oct11611350456
93341054684
101311101230
1161309a83a
1230710317a
1317b823b5a
14c61b07dc
157a18468a
hex4e25d12e

1311101230 has 16 divisors (see below), whose sum is σ = 2366215920. Its totient is φ = 523055232.

The previous prime is 1311101219. The next prime is 1311101263. The reversal of 1311101230 is 321011131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311101230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169179 + ... + 176758.

It is an arithmetic number, because the mean of its divisors is an integer number (147888495).

Almost surely, 21311101230 is an apocalyptic number.

1311101230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311101230 is a deficient number, since it is larger than the sum of its proper divisors (1055114690).

1311101230 is a wasteful number, since it uses less digits than its factorization.

1311101230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346323.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1311101230 is about 36209.1318592424. The cubic root of 1311101230 is about 1094.4906981482.

Adding to 1311101230 its reverse (321011131), we get a palindrome (1632112361).

Subtracting from 1311101230 its reverse (321011131), we obtain a palindrome (990090099).

The spelling of 1311101230 in words is "one billion, three hundred eleven million, one hundred one thousand, two hundred thirty".

Divisors: 1 2 5 10 379 758 1895 3790 345937 691874 1729685 3459370 131110123 262220246 655550615 1311101230