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399208 = 23139359
BaseRepresentation
bin1100001011101101000
3202021121111
41201131220
5100233313
612320104
73251605
oct1413550
9667544
10399208
11252a27
12173034
1310c924
14a56ac
157d43d
hex61768

399208 has 16 divisors (see below), whose sum is σ = 756000. Its totient is φ = 197616.

The previous prime is 399197. The next prime is 399221. The reversal of 399208 is 802993.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 399208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933 + ... + 1291.

It is an arithmetic number, because the mean of its divisors is an integer number (47250).

2399208 is an apocalyptic number.

It is an amenable number.

399208 is a deficient number, since it is larger than the sum of its proper divisors (356792).

399208 is a wasteful number, since it uses less digits than its factorization.

399208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 399208 is about 631.8290908149. The cubic root of 399208 is about 73.6319686264.

The spelling of 399208 in words is "three hundred ninety-nine thousand, two hundred eight".

Divisors: 1 2 4 8 139 278 359 556 718 1112 1436 2872 49901 99802 199604 399208