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1030220420 = 225103500107
BaseRepresentation
bin111101011001111…
…110101010000100
32122210112121201212
4331121332222010
54102214023140
6250121110552
734346505035
oct7531765204
92583477655
101030220420
11489594939
12249028458
1313558b5a8
149ab76a8c
15606a0765
hex3d67ea84

1030220420 has 24 divisors (see below), whose sum is σ = 2184471744. Its totient is φ = 408086496.

The previous prime is 1030220369. The next prime is 1030220423. The reversal of 1030220420 is 240220301.

It is a super-2 number, since 2×10302204202 = 2122708227569952800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1030220395 and 1030220404.

It is not an unprimeable number, because it can be changed into a prime (1030220423) 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, 247994 + ... + 252113.

It is an arithmetic number, because the mean of its divisors is an integer number (91019656).

Almost surely, 21030220420 is an apocalyptic number.

1030220420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030220420 is an abundant number, since it is smaller than the sum of its proper divisors (1154251324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1030220420 is a wasteful number, since it uses less digits than its factorization.

1030220420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500219 (or 500217 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1030220420 is about 32097.0469046609. The cubic root of 1030220420 is about 1009.9736685616.

Adding to 1030220420 its reverse (240220301), we get a palindrome (1270440721).

The spelling of 1030220420 in words is "one billion, thirty million, two hundred twenty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 103 206 412 515 1030 2060 500107 1000214 2000428 2500535 5001070 10002140 51511021 103022042 206044084 257555105 515110210 1030220420