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1379589897 = 3765694757
BaseRepresentation
bin101001000111010…
…1101111100001001
310120010221102120010
41102032231330021
510311133334042
6344521222133
746121214660
oct12216557411
93503842503
101379589897
11648819344
12326031949
1318ca837aa
14d131bdd7
15811b259c
hex523adf09

1379589897 has 8 divisors (see below), whose sum is σ = 2102232256. Its totient is φ = 788337072.

The previous prime is 1379589857. The next prime is 1379589961. The reversal of 1379589897 is 7989859731.

1379589897 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1379589897 - 224 = 1362812681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1379589857) 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, 32847358 + ... + 32847399.

It is an arithmetic number, because the mean of its divisors is an integer number (262779032).

Almost surely, 21379589897 is an apocalyptic number.

It is an amenable number.

1379589897 is a deficient number, since it is larger than the sum of its proper divisors (722642359).

1379589897 is an equidigital number, since it uses as much as digits as its factorization.

1379589897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65694767.

The product of its digits is 34292160, while the sum is 66.

The square root of 1379589897 is about 37142.8310310348. The cubic root of 1379589897 is about 1113.2259849545.

The spelling of 1379589897 in words is "one billion, three hundred seventy-nine million, five hundred eighty-nine thousand, eight hundred ninety-seven".

Divisors: 1 3 7 21 65694757 197084271 459863299 1379589897