Search a number
-
+
1380907 = 11472671
BaseRepresentation
bin101010001001000101011
32121011020201
411101020223
5323142112
645333031
714510653
oct5211053
92534221
101380907
11863550
12567177
13394708
1427d363
151c4257
hex15122b

1380907 has 8 divisors (see below), whose sum is σ = 1539072. Its totient is φ = 1228200.

The previous prime is 1380889. The next prime is 1380913. The reversal of 1380907 is 7090831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1380907 - 27 = 1380779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819 + ... + 1852.

It is an arithmetic number, because the mean of its divisors is an integer number (192384).

21380907 is an apocalyptic number.

1380907 is a deficient number, since it is larger than the sum of its proper divisors (158165).

1380907 is a wasteful number, since it uses less digits than its factorization.

1380907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1380907 is about 1175.1199938730. The cubic root of 1380907 is about 111.3580140183.

The spelling of 1380907 in words is "one million, three hundred eighty thousand, nine hundred seven".

Divisors: 1 11 47 517 2671 29381 125537 1380907