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399029 = 795051
BaseRepresentation
bin1100001011010110101
3202021100212
41201122311
5100232104
612315205
73251231
oct1413265
9667325
10399029
11252884
12172b05
1310c817
14a55c1
157d36e
hex616b5

399029 has 4 divisors (see below), whose sum is σ = 404160. Its totient is φ = 393900.

The previous prime is 399023. The next prime is 399031. The reversal of 399029 is 920993.

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, and also an emirpimes, since its reverse is a distinct semiprime: 920993 = 5031831.

It is a cyclic number.

It is not a de Polignac number, because 399029 - 216 = 333493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 398986 and 399004.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 399029.

It is not an unprimeable number, because it can be changed into a prime (399023) 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, 2447 + ... + 2604.

It is an arithmetic number, because the mean of its divisors is an integer number (101040).

2399029 is an apocalyptic number.

It is an amenable number.

399029 is a deficient number, since it is larger than the sum of its proper divisors (5131).

399029 is an equidigital number, since it uses as much as digits as its factorization.

399029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 399029 is about 631.6874227021. The cubic root of 399029 is about 73.6209617554.

The spelling of 399029 in words is "three hundred ninety-nine thousand, twenty-nine".

Divisors: 1 79 5051 399029