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842754245 = 51217138497
BaseRepresentation
bin110010001110110…
…110100011000101
32011201210100111012
4302032312203011
53211221113440
6215343052005
726612202314
oct6216664305
92151710435
10842754245
113a2792813
121b62a1005
131057a2268
147dcd827b
154debee65
hex323b68c5

842754245 has 8 divisors (see below), whose sum is σ = 1012143384. Its totient is φ = 673644544.

The previous prime is 842754233. The next prime is 842754259. The reversal of 842754245 is 542457248.

It is a happy number.

842754245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5982916 + 836771329 = 2446^2 + 28927^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 842754245 - 24 = 842754229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63164 + ... + 75333.

It is an arithmetic number, because the mean of its divisors is an integer number (126517923).

Almost surely, 2842754245 is an apocalyptic number.

It is an amenable number.

842754245 is a deficient number, since it is larger than the sum of its proper divisors (169389139).

842754245 is a wasteful number, since it uses less digits than its factorization.

842754245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139719.

The product of its digits is 358400, while the sum is 41.

The square root of 842754245 is about 29030.2298475227. The cubic root of 842754245 is about 944.5689158542.

The spelling of 842754245 in words is "eight hundred forty-two million, seven hundred fifty-four thousand, two hundred forty-five".

Divisors: 1 5 1217 6085 138497 692485 168550849 842754245