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1030202220 = 223585320129
BaseRepresentation
bin111101011001111…
…010001101101100
32122210111200202210
4331121322031230
54102212432340
6250120450420
734346401005
oct7531721554
92583450683
101030202220
114895821a3
12249019a10
13135583218
149ab701ac
156069a180
hex3d67a36c

1030202220 has 48 divisors (see below), whose sum is σ = 2888091360. Its totient is φ = 274384896.

The previous prime is 1030202219. The next prime is 1030202237. The reversal of 1030202220 is 222020301.

It is a super-2 number, since 2×10302022202 = 2122633228185856800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1030202196 and 1030202205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41116 + ... + 61244.

It is an arithmetic number, because the mean of its divisors is an integer number (60168570).

Almost surely, 21030202220 is an apocalyptic number.

1030202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030202220 is an abundant number, since it is smaller than the sum of its proper divisors (1857889140).

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

1030202220 is a wasteful number, since it uses less digits than its factorization.

1030202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20994 (or 20992 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1030202220 is about 32096.7633882297. The cubic root of 1030202220 is about 1009.9677210871.

Adding to 1030202220 its reverse (222020301), we get a palindrome (1252222521).

The spelling of 1030202220 in words is "one billion, thirty million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 853 1706 2559 3412 4265 5118 8530 10236 12795 17060 20129 25590 40258 51180 60387 80516 100645 120774 201290 241548 301935 402580 603870 1207740 17170037 34340074 51510111 68680148 85850185 103020222 171700370 206040444 257550555 343400740 515101110 1030202220