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1000069 = 7142867
BaseRepresentation
bin11110100001010000101
31212210211121
43310022011
5224000234
633233541
711333440
oct3641205
91783747
101000069
11623404
124028b1
13290275
141c0657
1514b4b4
hexf4285

1000069 has 4 divisors (see below), whose sum is σ = 1142944. Its totient is φ = 857196.

The previous prime is 1000039. The next prime is 1000081. The reversal of 1000069 is 9600001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1000069 - 25 = 1000037 is a prime.

It is a super-2 number, since 2×10000692 = 2000276009522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71427 + ... + 71440.

It is an arithmetic number, because the mean of its divisors is an integer number (285736).

21000069 is an apocalyptic number.

It is an amenable number.

1000069 is a deficient number, since it is larger than the sum of its proper divisors (142875).

1000069 is an equidigital number, since it uses as much as digits as its factorization.

1000069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142874.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1000069 is about 1000.0344994049. The cubic root of 1000069 is about 100.0022999471.

The spelling of 1000069 in words is "one million, sixty-nine", and thus it is an aban number and an uban number.

Divisors: 1 7 142867 1000069