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1306000423 = 71361235273
BaseRepresentation
bin100110111010111…
…1111110000100111
310101000110200210001
41031311333300213
510133314003143
6333332042131
744235551260
oct11565776047
93330420701
101306000423
116102264a2
12305463347
1317a759220
14c5643967
15799c814d
hex4dd7fc27

1306000423 has 16 divisors (see below), whose sum is σ = 1633742656. Its totient is φ = 1016375040.

The previous prime is 1306000393. The next prime is 1306000447. The reversal of 1306000423 is 3240006031.

It is a cyclic number.

It is not a de Polignac number, because 1306000423 - 25 = 1306000391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1306000423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306000523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112086 + ... + 123187.

It is an arithmetic number, because the mean of its divisors is an integer number (102108916).

Almost surely, 21306000423 is an apocalyptic number.

1306000423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1306000423 is a deficient number, since it is larger than the sum of its proper divisors (327742233).

1306000423 is a wasteful number, since it uses less digits than its factorization.

1306000423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235354.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1306000423 is about 36138.6278516493. The cubic root of 1306000423 is about 1093.0694904712.

Adding to 1306000423 its reverse (3240006031), we get a palindrome (4546006454).

The spelling of 1306000423 in words is "one billion, three hundred six million, four hundred twenty-three", and thus it is an aban number.

Divisors: 1 7 13 61 91 427 793 5551 235273 1646911 3058549 14351653 21409843 100461571 186571489 1306000423