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1412905 = 51321737
BaseRepresentation
bin101011000111100101001
32122210010211
411120330221
5330203110
650141121
715003154
oct5307451
92583124
101412905
1188559a
125817a1
133a6150
1428ac9b
151cd98a
hex158f29

1412905 has 8 divisors (see below), whose sum is σ = 1825992. Its totient is φ = 1043328.

The previous prime is 1412903. The next prime is 1412911. The reversal of 1412905 is 5092141.

It can be written as a sum of positive squares in 4 ways, for example, as 29929 + 1382976 = 173^2 + 1176^2 .

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

It is not a de Polignac number, because 1412905 - 21 = 1412903 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1412905 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1412903) 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 7 ways as a sum of consecutive naturals, for example, 10804 + ... + 10933.

It is an arithmetic number, because the mean of its divisors is an integer number (228249).

21412905 is an apocalyptic number.

It is an amenable number.

1412905 is a deficient number, since it is larger than the sum of its proper divisors (413087).

1412905 is a wasteful number, since it uses less digits than its factorization.

1412905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21755.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1412905 is about 1188.6568049694. The cubic root of 1412905 is about 112.2115739260.

The spelling of 1412905 in words is "one million, four hundred twelve thousand, nine hundred five".

Divisors: 1 5 13 65 21737 108685 282581 1412905