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2142363643 = 7243721707
BaseRepresentation
bin111111110110001…
…1101111111111011
312112022020100102121
41333230131333323
513341421114033
6552330142111
7104042535100
oct17754357773
95468210377
102142363643
119aa343572
124b9581937
13281b014c4
14164756aa7
15c813462d
hex7fb1dffb

2142363643 has 6 divisors (see below), whose sum is σ = 2492137356. Its totient is φ = 1836311652.

The previous prime is 2142363617. The next prime is 2142363649. The reversal of 2142363643 is 3463632412.

It is not a de Polignac number, because 2142363643 - 29 = 2142363131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2142363599 and 2142363608.

It is not an unprimeable number, because it can be changed into a prime (2142363649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21860805 + ... + 21860902.

It is an arithmetic number, because the mean of its divisors is an integer number (415356226).

Almost surely, 22142363643 is an apocalyptic number.

2142363643 is a deficient number, since it is larger than the sum of its proper divisors (349773713).

2142363643 is an equidigital number, since it uses as much as digits as its factorization.

2142363643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43721721 (or 43721714 counting only the distinct ones).

The product of its digits is 62208, while the sum is 34.

The square root of 2142363643 is about 46285.6742740127. The cubic root of 2142363643 is about 1289.1330117770.

The spelling of 2142363643 in words is "two billion, one hundred forty-two million, three hundred sixty-three thousand, six hundred forty-three".

Divisors: 1 7 49 43721707 306051949 2142363643