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2112450030 = 2355869321
BaseRepresentation
bin111110111101001…
…0110110111101110
312110012221120200000
41331322112313232
513311241400110
6545341045130
7103230346305
oct17572266756
95405846600
102112450030
11994471a79
124ab5567a6
13278859942
141607ab43c
15c56c61c0
hex7de96dee

2112450030 has 48 divisors (see below), whose sum is σ = 5695797744. Its totient is φ = 563319360.

The previous prime is 2112450023. The next prime is 2112450031. The reversal of 2112450030 is 300542112.

2112450030 is a `hidden beast` number, since 211 + 2 + 450 + 0 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2112449985 and 2112450012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112450031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 432231 + ... + 437090.

It is an arithmetic number, because the mean of its divisors is an integer number (118662453).

Almost surely, 22112450030 is an apocalyptic number.

2112450030 is an abundant number, since it is smaller than the sum of its proper divisors (3583347714).

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

2112450030 is an equidigital number, since it uses as much as digits as its factorization.

2112450030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869343 (or 869331 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2112450030 is about 45961.3971719747. The cubic root of 2112450030 is about 1283.1048547357.

Adding to 2112450030 its reverse (300542112), we get a palindrome (2412992142).

The spelling of 2112450030 in words is "two billion, one hundred twelve million, four hundred fifty thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 810 1215 2430 869321 1738642 2607963 4346605 5215926 7823889 8693210 13039815 15647778 23471667 26079630 39119445 46943334 70415001 78238890 117358335 140830002 211245003 234716670 352075005 422490006 704150010 1056225015 2112450030