Search a number
-
+
390320033 = 835099239
BaseRepresentation
bin10111010000111…
…100111110100001
31000012110022102112
4113100330332201
51244410220113
6102421525105
712446444165
oct2720747641
91005408375
10390320033
11190364244
12aa873795
1362b325cc
1439ba4ca5
15244005a8
hex1743cfa1

390320033 has 8 divisors (see below), whose sum is σ = 395841600. Its totient is φ = 384818128.

The previous prime is 390320027. The next prime is 390320069. The reversal of 390320033 is 330023093.

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

It is a cyclic number.

It is not a de Polignac number, because 390320033 - 224 = 373542817 is a prime.

It is a super-2 number, since 2×3903200332 = 304699456322242178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 390319990 and 390320008.

It is not an unprimeable number, because it can be changed into a prime (390320093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37628 + ... + 46866.

It is an arithmetic number, because the mean of its divisors is an integer number (49480200).

Almost surely, 2390320033 is an apocalyptic number.

It is an amenable number.

390320033 is a deficient number, since it is larger than the sum of its proper divisors (5521567).

390320033 is an equidigital number, since it uses as much as digits as its factorization.

390320033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9831.

The product of its (nonzero) digits is 1458, while the sum is 23.

The square root of 390320033 is about 19756.5187469858. The cubic root of 390320033 is about 730.8141495227.

The spelling of 390320033 in words is "three hundred ninety million, three hundred twenty thousand, thirty-three".

Divisors: 1 83 509 9239 42247 766837 4702651 390320033