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2140300420 = 225234652827
BaseRepresentation
bin111111110010010…
…0110010010000100
312112011100112012221
41333210212102010
513340404103140
6552214022124
7104016152626
oct17744462204
95464315187
102140300420
119a9164425
124b8947944
1328155b36b
1416437ac16
15c7d7814a
hex7f926484

2140300420 has 24 divisors (see below), whose sum is σ = 4690050624. Its totient is φ = 818897376.

The previous prime is 2140300403. The next prime is 2140300423. The reversal of 2140300420 is 240030412.

It is a junction number, because it is equal to n+sod(n) for n = 2140300394 and 2140300403.

It is not an unprimeable number, because it can be changed into a prime (2140300423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2325954 + ... + 2326873.

It is an arithmetic number, because the mean of its divisors is an integer number (195418776).

Almost surely, 22140300420 is an apocalyptic number.

2140300420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140300420 is an abundant number, since it is smaller than the sum of its proper divisors (2549750204).

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

2140300420 is a wasteful number, since it uses less digits than its factorization.

2140300420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4652859 (or 4652857 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2140300420 is about 46263.3809832355. The cubic root of 2140300420 is about 1288.7190417235.

Adding to 2140300420 its reverse (240030412), we get a palindrome (2380330832).

The spelling of 2140300420 in words is "two billion, one hundred forty million, three hundred thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 4652827 9305654 18611308 23264135 46528270 93056540 107015021 214030042 428060084 535075105 1070150210 2140300420