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2120230140 = 22357171915629
BaseRepresentation
bin111111001100000…
…0010010011111100
312110202120211222020
41332120002103330
513320234331030
6550215520140
7103353441660
oct17630022374
95422524866
102120230140
119988a6316
124b2089050
1327a351c62
141618348a0
15c6211510
hex7e6024fc

2120230140 has 192 divisors, whose sum is σ = 7562419200. Its totient is φ = 432082944.

The previous prime is 2120230139. The next prime is 2120230219. The reversal of 2120230140 is 410320212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 127846 + ... + 143474.

It is an arithmetic number, because the mean of its divisors is an integer number (39387600).

Almost surely, 22120230140 is an apocalyptic number.

2120230140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120230140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3781209600).

2120230140 is an abundant number, since it is smaller than the sum of its proper divisors (5442189060).

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

2120230140 is a wasteful number, since it uses less digits than its factorization.

2120230140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15684 (or 15682 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2120230140 is about 46045.9568257627. The cubic root of 2120230140 is about 1284.6781411138.

Adding to 2120230140 its reverse (410320212), we get a palindrome (2530550352).

The spelling of 2120230140 in words is "two billion, one hundred twenty million, two hundred thirty thousand, one hundred forty".