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390652 = 22127769
BaseRepresentation
bin1011111010111111100
3201211212121
41133113330
5100000102
612212324
73214633
oct1372774
9654777
10390652
11247559
1216a0a4
13108a72
14a251a
157ab37
hex5f5fc

390652 has 12 divisors (see below), whose sum is σ = 689920. Its totient is φ = 193536.

The previous prime is 390647. The next prime is 390653. The reversal of 390652 is 256093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390653) by changing a digit.

390652 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124 + ... + 892.

390652 is a Friedman number, since it can be written as 5^(6+2+0)+9*3, using all its digits and the basic arithmetic operations.

2390652 is an apocalyptic number.

It is an amenable number.

390652 is a deficient number, since it is larger than the sum of its proper divisors (299268).

390652 is a wasteful number, since it uses less digits than its factorization.

390652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 390652 is about 625.0215996268. The cubic root of 390652 is about 73.1021276507.

The spelling of 390652 in words is "three hundred ninety thousand, six hundred fifty-two".

Divisors: 1 2 4 127 254 508 769 1538 3076 97663 195326 390652