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620225089 = 11139405641
BaseRepresentation
bin100100111101111…
…110001001000001
31121020001200212121
4210331332021001
52232234200324
6141313324241
721240553261
oct4475761101
91536050777
10620225089
11299112320
12153866681
139b65a5c3
145c52d7a1
15396b55e4
hex24f7e241

620225089 has 8 divisors (see below), whose sum is σ = 681478560. Its totient is φ = 559783200.

The previous prime is 620225083. The next prime is 620225119. The reversal of 620225089 is 980522026.

620225089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 620225089 - 211 = 620223041 is a prime.

It is a super-2 number, since 2×6202250892 = 769358322050115842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620225083) 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, 201292 + ... + 204349.

It is an arithmetic number, because the mean of its divisors is an integer number (85184820).

Almost surely, 2620225089 is an apocalyptic number.

It is an amenable number.

620225089 is a deficient number, since it is larger than the sum of its proper divisors (61253471).

620225089 is a wasteful number, since it uses less digits than its factorization.

620225089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405791.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 620225089 is about 24904.3186817066. The cubic root of 620225089 is about 852.8050760676.

The spelling of 620225089 in words is "six hundred twenty million, two hundred twenty-five thousand, eighty-nine".

Divisors: 1 11 139 1529 405641 4462051 56384099 620225089