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1389341248 = 26181111987
BaseRepresentation
bin101001011001111…
…1010101001000000
310120211021211220021
41102303322221000
510321132404443
6345510223224
746300130401
oct12263725100
93524254807
101389341248
11653279709
12329354b14
13191ab9119
14d27399a8
1581e8b9ed
hex52cfaa40

1389341248 has 28 divisors (see below), whose sum is σ = 2758726512. Its totient is φ = 694229120.

The previous prime is 1389341207. The next prime is 1389341267. The reversal of 1389341248 is 8421439831.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109911 + ... + 121897.

Almost surely, 21389341248 is an apocalyptic number.

It is an amenable number.

1389341248 is a deficient number, since it is larger than the sum of its proper divisors (1369385264).

1389341248 is a wasteful number, since it uses less digits than its factorization.

1389341248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13810 (or 13800 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 1389341248 is about 37273.8681652441. The cubic root of 1389341248 is about 1115.8426999598.

The spelling of 1389341248 in words is "one billion, three hundred eighty-nine million, three hundred forty-one thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 32 64 1811 3622 7244 11987 14488 23974 28976 47948 57952 95896 115904 191792 383584 767168 21708457 43416914 86833828 173667656 347335312 694670624 1389341248