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1396 = 22349
BaseRepresentation
bin10101110100
31220201
4111310
521041
610244
74033
oct2564
91821
101396
11105a
12984
13835
1471a
15631
hex574

1396 has 6 divisors (see below), whose sum is σ = 2450. Its totient is φ = 696.

The previous prime is 1381. The next prime is 1399. The reversal of 1396 is 6931.

1396 = T29 + T30 + T31.

It can be written as a sum of positive squares in only one way, i.e., 1296 + 100 = 36^2 + 10^2 .

It is a nialpdrome in base 12 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171 + ... + 178.

1396 is the 31-st centered triangular number.

It is an amenable number.

1396 is a deficient number, since it is larger than the sum of its proper divisors (1054).

1396 is a wasteful number, since it uses less digits than its factorization.

1396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 351 counting only the distinct ones).

The product of its digits is 162, while the sum is 19.

The square root of 1396 is about 37.3630833845. The cubic root of 1396 is about 11.1762250774.

The spelling of 1396 in words is "one thousand, three hundred ninety-six".

Divisors: 1 2 4 349 698 1396