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3220300031 = 13247715387
BaseRepresentation
bin1011111111110001…
…1110000011111111
322022102120012011112
42333330132003333
523043344100111
61251314112235
7142542045554
oct27774360377
98272505145
103220300031
111402859093
1275a57b67b
133c42286a0
14227990a2b
1513caace8b
hexbff1e0ff

3220300031 has 4 divisors (see below), whose sum is σ = 3468015432. Its totient is φ = 2972584632.

The previous prime is 3220300003. The next prime is 3220300043. The reversal of 3220300031 is 1300030223.

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 3220300031 - 26 = 3220299967 is a prime.

It is a super-2 number, since 2×32203000312 = 20740664579317201922, 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 = 3220299979 and 3220300015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220300001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123857681 + ... + 123857706.

It is an arithmetic number, because the mean of its divisors is an integer number (867003858).

Almost surely, 23220300031 is an apocalyptic number.

3220300031 is a deficient number, since it is larger than the sum of its proper divisors (247715401).

3220300031 is a wasteful number, since it uses less digits than its factorization.

3220300031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247715400.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 3220300031 is about 56747.6874506794. The cubic root of 3220300031 is about 1476.7221147582.

Adding to 3220300031 its reverse (1300030223), we get a palindrome (4520330254).

The spelling of 3220300031 in words is "three billion, two hundred twenty million, three hundred thousand, thirty-one".

Divisors: 1 13 247715387 3220300031