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393069 = 3131023
BaseRepresentation
bin1011111111101101101
3201222012010
41133331231
5100034234
612231433
73224655
oct1377555
9658163
10393069
11249356
1216b579
13109bb1
14a3365
157b6e9
hex5ff6d

393069 has 4 divisors (see below), whose sum is σ = 524096. Its totient is φ = 262044.

The previous prime is 393059. The next prime is 393073. The reversal of 393069 is 960393.

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 not a de Polignac number, because 393069 - 211 = 391021 is a prime.

It is a super-2 number, since 2×3930692 = 309006477522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393059) 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, 65509 + ... + 65514.

It is an arithmetic number, because the mean of its divisors is an integer number (131024).

2393069 is an apocalyptic number.

It is an amenable number.

393069 is a deficient number, since it is larger than the sum of its proper divisors (131027).

393069 is a wasteful number, since it uses less digits than its factorization.

393069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131026.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 393069 is about 626.9521512843. The cubic root of 393069 is about 73.2525809913.

The spelling of 393069 in words is "three hundred ninety-three thousand, sixty-nine".

Divisors: 1 3 131023 393069