Search a number
-
+
1201388 = 22300347
BaseRepresentation
bin100100101010011101100
32021000222212
410211103230
5301421023
641425552
713132406
oct4452354
92230885
101201388
11750691
1249b2b8
13330aa6
14233b76
1518ae78
hex1254ec

1201388 has 6 divisors (see below), whose sum is σ = 2102436. Its totient is φ = 600692.

The previous prime is 1201381. The next prime is 1201439. The reversal of 1201388 is 8831021.

It is not an unprimeable number, because it can be changed into a prime (1201381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150170 + ... + 150177.

It is an arithmetic number, because the mean of its divisors is an integer number (350406).

21201388 is an apocalyptic number.

It is an amenable number.

1201388 is a deficient number, since it is larger than the sum of its proper divisors (901048).

1201388 is a wasteful number, since it uses less digits than its factorization.

1201388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300351 (or 300349 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1201388 is about 1096.0784643446. The cubic root of 1201388 is about 106.3068125232.

The spelling of 1201388 in words is "one million, two hundred one thousand, three hundred eighty-eight".

Divisors: 1 2 4 300347 600694 1201388