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2143620030 = 23571454001
BaseRepresentation
bin111111111000101…
…0000101110111110
312112101121011212110
41333301100232332
513342231320110
6552413114450
7104056320036
oct17761205676
95471534773
102143620030
11a00021502
124b9a88a26
13282151326
141649a28c6
15c82d1a20
hex7fc50bbe

2143620030 has 16 divisors (see below), whose sum is σ = 5144688144. Its totient is φ = 571632000.

The previous prime is 2143620013. The next prime is 2143620041. The reversal of 2143620030 is 300263412.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2143619979 and 2143620006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35726971 + ... + 35727030.

It is an arithmetic number, because the mean of its divisors is an integer number (321543009).

Almost surely, 22143620030 is an apocalyptic number.

2143620030 is an abundant number, since it is smaller than the sum of its proper divisors (3001068114).

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

2143620030 is a wasteful number, since it uses less digits than its factorization.

2143620030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71454011.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2143620030 is about 46299.2443782833. The cubic root of 2143620030 is about 1289.3849661159.

Adding to 2143620030 its reverse (300263412), we get a palindrome (2443883442).

The spelling of 2143620030 in words is "two billion, one hundred forty-three million, six hundred twenty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 71454001 142908002 214362003 357270005 428724006 714540010 1071810015 2143620030