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2140120 = 23553503
BaseRepresentation
bin1000001010011111011000
311000201200201
420022133120
51021440440
6113511544
724122263
oct10123730
94021621
102140120
1112319a4
128725b4
1359c158
143d9cda
152c419a
hex20a7d8

2140120 has 16 divisors (see below), whose sum is σ = 4815360. Its totient is φ = 856032.

The previous prime is 2140109. The next prime is 2140121. The reversal of 2140120 is 210412.

It is a super-2 number, since 2×21401202 = 9160227228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2140097 and 2140106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26712 + ... + 26791.

It is an arithmetic number, because the mean of its divisors is an integer number (300960).

22140120 is an apocalyptic number.

2140120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140120 is an abundant number, since it is smaller than the sum of its proper divisors (2675240).

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

2140120 is a wasteful number, since it uses less digits than its factorization.

2140120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53514 (or 53510 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2140120 is about 1462.9148984134. The cubic root of 2140120 is about 128.8682829171.

Adding to 2140120 its reverse (210412), we get a palindrome (2350532).

The spelling of 2140120 in words is "two million, one hundred forty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 53503 107006 214012 267515 428024 535030 1070060 2140120