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1030220331 = 37291691659
BaseRepresentation
bin111101011001111…
…110101000101011
32122210112121121120
4331121332220223
54102214022311
6250121110323
734346504550
oct7531765053
92583477546
101030220331
11489594868
122490283a3
1313558b53a
149ab76a27
15606a0706
hex3d67ea2b

1030220331 has 16 divisors (see below), whose sum is σ = 1623993600. Its totient is φ = 568397088.

The previous prime is 1030220329. The next prime is 1030220353. The reversal of 1030220331 is 1330220301.

It is not a de Polignac number, because 1030220331 - 21 = 1030220329 is a prime.

It is a super-2 number, since 2×10302203312 = 2122707860811499122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1030220331.

It is not an unprimeable number, because it can be changed into a prime (1030220131) 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 15 ways as a sum of consecutive naturals, for example, 845221 + ... + 846438.

It is an arithmetic number, because the mean of its divisors is an integer number (101499600).

Almost surely, 21030220331 is an apocalyptic number.

1030220331 is a deficient number, since it is larger than the sum of its proper divisors (593773269).

1030220331 is a wasteful number, since it uses less digits than its factorization.

1030220331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691698.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1030220331 is about 32097.0455182405. The cubic root of 1030220331 is about 1009.9736394780.

Adding to 1030220331 its reverse (1330220301), we get a palindrome (2360440632).

The spelling of 1030220331 in words is "one billion, thirty million, two hundred twenty thousand, three hundred thirty-one".

Divisors: 1 3 7 21 29 87 203 609 1691659 5074977 11841613 35524839 49058111 147174333 343406777 1030220331