Search a number
-
+
3220142031 = 32357793559
BaseRepresentation
bin1011111111101111…
…0111011111001111
322022102021011102200
42333323313133033
523043324021111
61251310452543
7142540520121
oct27773673717
98272234380
103220142031
111402760407
1275a504153
133c41a17b2
1422794d211
1513ca7b256
hexbfef77cf

3220142031 has 6 divisors (see below), whose sum is σ = 4651316280. Its totient is φ = 2146761348.

The previous prime is 3220141999. The next prime is 3220142069. The reversal of 3220142031 is 1302410223.

It is not a de Polignac number, because 3220142031 - 25 = 3220141999 is a prime.

It is a super-2 number, since 2×32201420312 = 20738629399625609922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3220141995 and 3220142013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220142131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178896771 + ... + 178896788.

It is an arithmetic number, because the mean of its divisors is an integer number (775219380).

Almost surely, 23220142031 is an apocalyptic number.

3220142031 is a deficient number, since it is larger than the sum of its proper divisors (1431174249).

3220142031 is a wasteful number, since it uses less digits than its factorization.

3220142031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357793565 (or 357793562 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3220142031 is about 56746.2953063898. The cubic root of 3220142031 is about 1476.6979631876.

Adding to 3220142031 its reverse (1302410223), we get a palindrome (4522552254).

The spelling of 3220142031 in words is "three billion, two hundred twenty million, one hundred forty-two thousand, thirty-one".

Divisors: 1 3 9 357793559 1073380677 3220142031