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1968574413 = 31350476267
BaseRepresentation
bin111010101010110…
…0000111111001101
312002012012221102110
41311111200333031
513012423340123
6523201214233
766532415001
oct16525407715
95065187373
101968574413
11920233103
1246b331379
13254ac3540
14149638701
15b7c56493
hex75560fcd

1968574413 has 8 divisors (see below), whose sum is σ = 2826671008. Its totient is φ = 1211430384.

The previous prime is 1968574411. The next prime is 1968574417. The reversal of 1968574413 is 3144758691.

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

It is not a de Polignac number, because 1968574413 - 21 = 1968574411 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 (1968574411) 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, 25238095 + ... + 25238172.

It is an arithmetic number, because the mean of its divisors is an integer number (353333876).

Almost surely, 21968574413 is an apocalyptic number.

1968574413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1968574413 is a deficient number, since it is larger than the sum of its proper divisors (858096595).

1968574413 is a wasteful number, since it uses less digits than its factorization.

1968574413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50476283.

The product of its digits is 725760, while the sum is 48.

The square root of 1968574413 is about 44368.6196877929. The cubic root of 1968574413 is about 1253.2872225299.

The spelling of 1968574413 in words is "one billion, nine hundred sixty-eight million, five hundred seventy-four thousand, four hundred thirteen".

Divisors: 1 3 13 39 50476267 151428801 656191471 1968574413