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1310212101 = 311239271613
BaseRepresentation
bin100111000011000…
…0100000000000101
310101022101200010010
41032012010000011
510140403241401
6334002220433
744316422232
oct11606040005
93338350103
101310212101
11612642820
12306954719
1317b5a2243
14c601c789
157a05aed6
hex4e184005

1310212101 has 32 divisors (see below), whose sum is σ = 1923932160. Its totient is φ = 786542400.

The previous prime is 1310212087. The next prime is 1310212129. The reversal of 1310212101 is 1012120131.

It is not a de Polignac number, because 1310212101 - 214 = 1310195717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310212301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2137071 + ... + 2137683.

It is an arithmetic number, because the mean of its divisors is an integer number (60122880).

Almost surely, 21310212101 is an apocalyptic number.

1310212101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1310212101 is a deficient number, since it is larger than the sum of its proper divisors (613720059).

1310212101 is a wasteful number, since it uses less digits than its factorization.

1310212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1310212101 is about 36196.8520868873. The cubic root of 1310212101 is about 1094.2432309908.

Adding to 1310212101 its reverse (1012120131), we get a palindrome (2322332232).

The spelling of 1310212101 in words is "one billion, three hundred ten million, two hundred twelve thousand, one hundred one".

Divisors: 1 3 11 33 239 271 613 717 813 1839 2629 2981 6743 7887 8943 20229 64769 146507 166123 194307 439521 498369 712459 1611577 1827353 2137377 4834731 5482059 39703397 119110191 436737367 1310212101