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1399311 = 32181859
BaseRepresentation
bin101010101101000001111
32122002111100
411111220033
5324234221
645554143
714615424
oct5255017
92562440
101399311
11876361
12575953
1339cbc4
14285d4b
151c9926
hex155a0f

1399311 has 12 divisors (see below), whose sum is σ = 2034760. Its totient is φ = 926640.

The previous prime is 1399301. The next prime is 1399319. The reversal of 1399311 is 1139931.

It is not a de Polignac number, because 1399311 - 27 = 1399183 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1200 + ... + 2058.

21399311 is an apocalyptic number.

1399311 is a deficient number, since it is larger than the sum of its proper divisors (635449).

1399311 is a wasteful number, since it uses less digits than its factorization.

1399311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046 (or 1043 counting only the distinct ones).

The product of its digits is 729, while the sum is 27.

The square root of 1399311 is about 1182.9247651478. The cubic root of 1399311 is about 111.8505393710.

The spelling of 1399311 in words is "one million, three hundred ninety-nine thousand, three hundred eleven".

Divisors: 1 3 9 181 543 859 1629 2577 7731 155479 466437 1399311