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390502 = 2727893
BaseRepresentation
bin1011111010101100110
3201211200001
41133111212
544444002
612211514
73214330
oct1372546
9654601
10390502
11247432
12169b9a
13108988
14a2450
157aa87
hex5f566

390502 has 8 divisors (see below), whose sum is σ = 669456. Its totient is φ = 167352.

The previous prime is 390499. The next prime is 390503. The reversal of 390502 is 205093.

Adding to 390502 its reverse (205093), we get a palindrome (595595).

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

It is a self number, because there is not a number n which added to its sum of digits gives 390502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390503) 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, 13933 + ... + 13960.

It is an arithmetic number, because the mean of its divisors is an integer number (83682).

2390502 is an apocalyptic number.

390502 is a deficient number, since it is larger than the sum of its proper divisors (278954).

390502 is a wasteful number, since it uses less digits than its factorization.

390502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27902.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 390502 is about 624.9015922527. The cubic root of 390502 is about 73.0927700273.

The spelling of 390502 in words is "three hundred ninety thousand, five hundred two".

Divisors: 1 2 7 14 27893 55786 195251 390502