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1405034013 = 31074377053
BaseRepresentation
bin101001110111111…
…0001111000011101
310121220211010022210
41103233301320131
510334142042023
6351230431033
746550410035
oct12357617035
93556733283
101405034013
11661117939
12332662479
13195121b96
14d48628c5
158353b593
hex53bf1e1d

1405034013 has 8 divisors (see below), whose sum is σ = 1890887328. Its totient is φ = 927935024.

The previous prime is 1405033999. The next prime is 1405034047. The reversal of 1405034013 is 3104305041.

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 1405034013 - 24 = 1405033997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405034063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2188206 + ... + 2188847.

It is an arithmetic number, because the mean of its divisors is an integer number (236360916).

Almost surely, 21405034013 is an apocalyptic number.

It is an amenable number.

1405034013 is a deficient number, since it is larger than the sum of its proper divisors (485853315).

1405034013 is a wasteful number, since it uses less digits than its factorization.

1405034013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377163.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1405034013 is about 37483.7833335964. The cubic root of 1405034013 is about 1120.0281702630.

Adding to 1405034013 its reverse (3104305041), we get a palindrome (4509339054).

The spelling of 1405034013 in words is "one billion, four hundred five million, thirty-four thousand, thirteen".

Divisors: 1 3 107 321 4377053 13131159 468344671 1405034013