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1379330399 = 31149298621
BaseRepresentation
bin101001000110110…
…1110100101011111
310120010110020121002
41102031232211133
510311102033044
6344511500515
746116054266
oct12215564537
93503406532
101379330399
11648661387
12325b2773b
1318c9c2645
14d12915dd
158116074e
hex5236e95f

1379330399 has 8 divisors (see below), whose sum is σ = 1433385600. Its totient is φ = 1325872800.

The previous prime is 1379330387. The next prime is 1379330417. The reversal of 1379330399 is 9930339731.

It is a happy number.

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 1379330399 - 24 = 1379330383 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 (1379330339) 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, 144692 + ... + 153929.

It is an arithmetic number, because the mean of its divisors is an integer number (179173200).

Almost surely, 21379330399 is an apocalyptic number.

1379330399 is a deficient number, since it is larger than the sum of its proper divisors (54055201).

1379330399 is a wasteful number, since it uses less digits than its factorization.

1379330399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298801.

The product of its (nonzero) digits is 413343, while the sum is 47.

The square root of 1379330399 is about 37139.3376219878. The cubic root of 1379330399 is about 1113.1561820777.

The spelling of 1379330399 in words is "one billion, three hundred seventy-nine million, three hundred thirty thousand, three hundred ninety-nine".

Divisors: 1 31 149 4619 298621 9257251 44494529 1379330399