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620854241 = 71935913003
BaseRepresentation
bin100101000000010…
…111101111100001
31121021020122220112
4211000113233201
52232414313431
6141335021105
721246113450
oct4500275741
91537218815
10620854241
11299501a87
12153b0a795
139b81aa97
145c654b97
153978bc2b
hex25017be1

620854241 has 16 divisors (see below), whose sum is σ = 749030400. Its totient is φ = 502709328.

The previous prime is 620854237. The next prime is 620854259. The reversal of 620854241 is 142458026.

It is a cyclic number.

It is not a de Polignac number, because 620854241 - 22 = 620854237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 620854198 and 620854207.

It is not an unprimeable number, because it can be changed into a prime (620854211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41246 + ... + 54248.

It is an arithmetic number, because the mean of its divisors is an integer number (46814400).

Almost surely, 2620854241 is an apocalyptic number.

It is an amenable number.

620854241 is a deficient number, since it is larger than the sum of its proper divisors (128176159).

620854241 is a wasteful number, since it uses less digits than its factorization.

620854241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13388.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 620854241 is about 24916.9468635305. The cubic root of 620854241 is about 853.0933384574.

The spelling of 620854241 in words is "six hundred twenty million, eight hundred fifty-four thousand, two hundred forty-one".

Divisors: 1 7 19 133 359 2513 6821 13003 47747 91021 247057 1729399 4668077 32676539 88693463 620854241