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1430040013 = 3146130323
BaseRepresentation
bin101010100111100…
…1010110111001101
310200122212120002221
41111033022313031
510412042240023
6353522415341
750303065603
oct12517126715
93618776087
101430040013
11674247256
1233ab01551
1319a368a2c
14d7cd1873
158582a85d
hex553cadcd

1430040013 has 4 divisors (see below), whose sum is σ = 1476170368. Its totient is φ = 1383909660.

The previous prime is 1430039987. The next prime is 1430040071. The reversal of 1430040013 is 3100400341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1430040013 - 25 = 1430039981 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 (1430040613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23065131 + ... + 23065192.

It is an arithmetic number, because the mean of its divisors is an integer number (369042592).

Almost surely, 21430040013 is an apocalyptic number.

It is an amenable number.

1430040013 is a deficient number, since it is larger than the sum of its proper divisors (46130355).

1430040013 is an equidigital number, since it uses as much as digits as its factorization.

1430040013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46130354.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1430040013 is about 37815.8698564505. The cubic root of 1430040013 is about 1126.6336792955.

Adding to 1430040013 its reverse (3100400341), we get a palindrome (4530440354).

The spelling of 1430040013 in words is "one billion, four hundred thirty million, forty thousand, thirteen".

Divisors: 1 31 46130323 1430040013