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2147922143 = 7329423591
BaseRepresentation
bin1000000000000110…
…1011000011011111
312112200200202020222
42000001223003133
513344332002033
6553045231555
7104141015453
oct20001530337
95480622228
102147922143
11a0249a774
124bb4025bb
13282cc9563
141653a2663
15c8881598
hex8006b0df

2147922143 has 4 divisors (see below), whose sum is σ = 2177345808. Its totient is φ = 2118498480.

The previous prime is 2147922121. The next prime is 2147922151. The reversal of 2147922143 is 3412297412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2147922143 - 28 = 2147921887 is a prime.

It is a super-2 number, since 2×21479221432 = 9227139064779424898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147921143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14711723 + ... + 14711868.

It is an arithmetic number, because the mean of its divisors is an integer number (544336452).

Almost surely, 22147922143 is an apocalyptic number.

2147922143 is a deficient number, since it is larger than the sum of its proper divisors (29423665).

2147922143 is an equidigital number, since it uses as much as digits as its factorization.

2147922143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29423664.

The product of its digits is 24192, while the sum is 35.

The square root of 2147922143 is about 46345.6809530295. The cubic root of 2147922143 is about 1290.2469617117.

The spelling of 2147922143 in words is "two billion, one hundred forty-seven million, nine hundred twenty-two thousand, one hundred forty-three".

Divisors: 1 73 29423591 2147922143