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1396863 = 321311939
BaseRepresentation
bin101010101000001111111
32121222010200
411111001333
5324144423
645534543
714605326
oct5250177
92558120
101396863
11874536
12574453
1339ba60
142850bd
151c8d43
hex15507f

1396863 has 12 divisors (see below), whose sum is σ = 2173080. Its totient is φ = 859536.

The previous prime is 1396849. The next prime is 1396867. The reversal of 1396863 is 3686931.

It is a happy number.

It is not a de Polignac number, because 1396863 - 24 = 1396847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5853 + ... + 6086.

It is an arithmetic number, because the mean of its divisors is an integer number (181090).

21396863 is an apocalyptic number.

1396863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1396863 is a deficient number, since it is larger than the sum of its proper divisors (776217).

1396863 is a wasteful number, since it uses less digits than its factorization.

1396863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11958 (or 11955 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1396863 is about 1181.8895887518. The cubic root of 1396863 is about 111.7852763126.

The spelling of 1396863 in words is "one million, three hundred ninety-six thousand, eight hundred sixty-three".

Divisors: 1 3 9 13 39 117 11939 35817 107451 155207 465621 1396863