Search a number
-
+
3205434031 = 17238198041
BaseRepresentation
bin1011111100001111…
…0000101010101111
322021101120220211221
42333003300222233
523031042342111
61250023324211
7142301511502
oct27703605257
98241526757
103205434031
1113a5425038
127555b0667
133c1122037
14225a01139
1513b623371
hexbf0f0aaf

3205434031 has 8 divisors (see below), whose sum is σ = 3541554144. Its totient is φ = 2885710080.

The previous prime is 3205433999. The next prime is 3205434047. The reversal of 3205434031 is 1304345023.

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 3205434031 - 25 = 3205433999 is a prime.

It is a super-2 number, since 2×32054340312 = 20549614654185817922, 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 = 3205433987 and 3205434005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205434731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4098630 + ... + 4099411.

It is an arithmetic number, because the mean of its divisors is an integer number (442694268).

Almost surely, 23205434031 is an apocalyptic number.

3205434031 is a deficient number, since it is larger than the sum of its proper divisors (336120113).

3205434031 is a wasteful number, since it uses less digits than its factorization.

3205434031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8198081.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 3205434031 is about 56616.5526237690. The cubic root of 3205434031 is about 1474.4462586359.

Adding to 3205434031 its reverse (1304345023), we get a palindrome (4509779054).

The spelling of 3205434031 in words is "three billion, two hundred five million, four hundred thirty-four thousand, thirty-one".

Divisors: 1 17 23 391 8198041 139366697 188554943 3205434031