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1030042220 = 22551502111
BaseRepresentation
bin111101011001010…
…011001001101100
32122210012120021212
4331121103021230
54102142322340
6250113213552
734345133354
oct7531231154
92583176255
101030042220
11489482a69
12248b612b8
1313552844c
149ab2bb64
1560667a65
hex3d65326c

1030042220 has 12 divisors (see below), whose sum is σ = 2163088704. Its totient is φ = 412016880.

The previous prime is 1030042217. The next prime is 1030042243. The reversal of 1030042220 is 222400301.

It is a junction number, because it is equal to n+sod(n) for n = 1030042195 and 1030042204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25751036 + ... + 25751075.

It is an arithmetic number, because the mean of its divisors is an integer number (180257392).

Almost surely, 21030042220 is an apocalyptic number.

1030042220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030042220 is an abundant number, since it is smaller than the sum of its proper divisors (1133046484).

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

1030042220 is a wasteful number, since it uses less digits than its factorization.

1030042220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51502120 (or 51502118 counting only the distinct ones).

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

The square root of 1030042220 is about 32094.2708282958. The cubic root of 1030042220 is about 1009.9154325821.

Adding to 1030042220 its reverse (222400301), we get a palindrome (1252442521).

The spelling of 1030042220 in words is "one billion, thirty million, forty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 51502111 103004222 206008444 257510555 515021110 1030042220