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2030515220 = 2251031099043
BaseRepresentation
bin111100100000111…
…0011010000010100
312020111202212020102
41321001303100110
513124302441340
6533252553232
7101214044306
oct17101632024
95214685212
102030515220
1195219a158
12488022818
1326489c9c6
1415395d976
15bd3de215
hex79073414

2030515220 has 48 divisors (see below), whose sum is σ = 4345461120. Its totient is φ = 796853376.

The previous prime is 2030515183. The next prime is 2030515321. The reversal of 2030515220 is 225150302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2030515192 and 2030515201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220019 + ... + 229061.

It is an arithmetic number, because the mean of its divisors is an integer number (90530440).

Almost surely, 22030515220 is an apocalyptic number.

2030515220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2030515220 is an abundant number, since it is smaller than the sum of its proper divisors (2314945900).

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

2030515220 is a wasteful number, since it uses less digits than its factorization.

2030515220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9264 (or 9262 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2030515220 is about 45061.2385537726. The cubic root of 2030515220 is about 1266.2965288163.

Adding to 2030515220 its reverse (225150302), we get a palindrome (2255665522).

The spelling of 2030515220 in words is "two billion, thirty million, five hundred fifteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 103 109 206 218 412 436 515 545 1030 1090 2060 2180 9043 11227 18086 22454 36172 44908 45215 56135 90430 112270 180860 224540 931429 985687 1862858 1971374 3725716 3942748 4657145 4928435 9314290 9856870 18628580 19713740 101525761 203051522 406103044 507628805 1015257610 2030515220