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1313401421 = 41156720443
BaseRepresentation
bin100111001001000…
…1110101001001101
310101112101201001002
41032102032221031
510142212321141
6334154430045
744355504443
oct11622165115
93345351032
101313401421
11614420a22
12307a32325
1317c14ab07
14c660cb93
157a48ae9b
hex4e48ea4d

1313401421 has 8 divisors (see below), whose sum is σ = 1346360064. Its totient is φ = 1280486880.

The previous prime is 1313401403. The next prime is 1313401451. The reversal of 1313401421 is 1241043131.

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 1313401421 - 26 = 1313401357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313401393 and 1313401402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313401451) 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, 54026 + ... + 74468.

It is an arithmetic number, because the mean of its divisors is an integer number (168295008).

Almost surely, 21313401421 is an apocalyptic number.

It is an amenable number.

1313401421 is a deficient number, since it is larger than the sum of its proper divisors (32958643).

1313401421 is a wasteful number, since it uses less digits than its factorization.

1313401421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22051.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1313401421 is about 36240.8805218637. The cubic root of 1313401421 is about 1095.1303809777.

Adding to 1313401421 its reverse (1241043131), we get a palindrome (2554444552).

The spelling of 1313401421 in words is "one billion, three hundred thirteen million, four hundred one thousand, four hundred twenty-one".

Divisors: 1 41 1567 20443 64247 838163 32034181 1313401421