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1311412103 = 2971636917
BaseRepresentation
bin100111000101010…
…1000111110000111
310101101122122012122
41032022220332013
510141210141403
6334044040155
744332550621
oct11612507607
93341578178
101311412103
11613292361
1230723305b
1317b9024c1
14c6251c11
157a1e6838
hex4e2a8f87

1311412103 has 8 divisors (see below), whose sum is σ = 1375742880. Its totient is φ = 1248355360.

The previous prime is 1311412093. The next prime is 1311412111. The reversal of 1311412103 is 3012141131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311412103 - 28 = 1311411847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311412133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316400 + ... + 320517.

It is an arithmetic number, because the mean of its divisors is an integer number (171967860).

Almost surely, 21311412103 is an apocalyptic number.

1311412103 is a deficient number, since it is larger than the sum of its proper divisors (64330777).

1311412103 is an equidigital number, since it uses as much as digits as its factorization.

1311412103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637017.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1311412103 is about 36213.4243478851. The cubic root of 1311412103 is about 1094.5771955929.

Adding to 1311412103 its reverse (3012141131), we get a palindrome (4323553234).

The spelling of 1311412103 in words is "one billion, three hundred eleven million, four hundred twelve thousand, one hundred three".

Divisors: 1 29 71 2059 636917 18470593 45221107 1311412103