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3130202021 = 47139479137
BaseRepresentation
bin1011101010010011…
…0001011110100101
322002011000201221012
42322210301132211
522402312431041
61234335032005
7140366164262
oct27244613645
98064021835
103130202021
111366a10121
1273436b605
133ab670c5b
14219a1a269
15134c123eb
hexba9317a5

3130202021 has 8 divisors (see below), whose sum is σ = 3219807360. Its totient is φ = 3041555328.

The previous prime is 3130201979. The next prime is 3130202041. The reversal of 3130202021 is 1202020313.

It is a happy number.

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 3130202021 - 26 = 3130201957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3130201987 and 3130202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130202041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233036 + ... + 246101.

It is an arithmetic number, because the mean of its divisors is an integer number (402475920).

Almost surely, 23130202021 is an apocalyptic number.

It is an amenable number.

3130202021 is a deficient number, since it is larger than the sum of its proper divisors (89605339).

3130202021 is a wasteful number, since it uses less digits than its factorization.

3130202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479323.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3130202021 is about 55948.2083806086. The cubic root of 3130202021 is about 1462.8196621343.

Adding to 3130202021 its reverse (1202020313), we get a palindrome (4332222334).

The spelling of 3130202021 in words is "three billion, one hundred thirty million, two hundred two thousand, twenty-one".

Divisors: 1 47 139 6533 479137 22519439 66600043 3130202021