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3021030031 = 13921734029
BaseRepresentation
bin1011010000010001…
…0100001010001111
321210112121020010011
42310010110022033
522141340430111
61215435054051
7134602221505
oct26404241217
97715536104
103021030031
111310324638
127038a1327
13391b68746
1420931c675
1512a34a021
hexb411428f

3021030031 has 4 divisors (see below), whose sum is σ = 3042764200. Its totient is φ = 2999295864.

The previous prime is 3021030017. The next prime is 3021030037. The reversal of 3021030031 is 1300301203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3021030031 - 29 = 3021029519 is a prime.

It is a super-2 number, since 2×30210300312 = 18253244896407721922, 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 = 3021029993 and 3021030020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3021030037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10866876 + ... + 10867153.

It is an arithmetic number, because the mean of its divisors is an integer number (760691050).

Almost surely, 23021030031 is an apocalyptic number.

3021030031 is a deficient number, since it is larger than the sum of its proper divisors (21734169).

3021030031 is a wasteful number, since it uses less digits than its factorization.

3021030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21734168.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 3021030031 is about 54963.8975237383. The cubic root of 3021030031 is about 1445.6117875743.

Adding to 3021030031 its reverse (1300301203), we get a palindrome (4321331234).

The spelling of 3021030031 in words is "three billion, twenty-one million, thirty thousand, thirty-one".

Divisors: 1 139 21734029 3021030031