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2123230130 = 257171784227
BaseRepresentation
bin111111010001101…
…1110101110110010
312110222020021011222
41332203132232302
513322021331010
6550404105042
7103421105210
oct17643365662
95428207158
102123230130
1199a56524a
124b3095182
1327ab625b8
14161db5cb0
15c6605355
hex7e8debb2

2123230130 has 32 divisors (see below), whose sum is σ = 4624718976. Its totient is φ = 685142784.

The previous prime is 2123230129. The next prime is 2123230231. The reversal of 2123230130 is 310323212.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 2123230099 and 2123230108.

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, 890924 + ... + 893303.

It is an arithmetic number, because the mean of its divisors is an integer number (144522468).

Almost surely, 22123230130 is an apocalyptic number.

2123230130 is an abundant number, since it is smaller than the sum of its proper divisors (2501488846).

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

2123230130 is a wasteful number, since it uses less digits than its factorization.

2123230130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784258.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2123230130 is about 46078.5213521441. The cubic root of 2123230130 is about 1285.2837680219.

Adding to 2123230130 its reverse (310323212), we get a palindrome (2433553342).

The spelling of 2123230130 in words is "two billion, one hundred twenty-three million, two hundred thirty thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 595 1190 1784227 3568454 8921135 12489589 17842270 24979178 30331859 60663718 62447945 124895890 151659295 212323013 303318590 424646026 1061615065 2123230130