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620214189 = 3729534009
BaseRepresentation
bin100100111101111…
…011011110101101
31121020001010220220
4210331323132231
52232233323224
6141313201553
721240506430
oct4475733655
91536033826
10620214189
11299105111
121538602b9
139b65565a
145c529817
15396b2279
hex24f7b7ad

620214189 has 8 divisors (see below), whose sum is σ = 945088320. Its totient is φ = 354408096.

The previous prime is 620214163. The next prime is 620214197. The reversal of 620214189 is 981412026.

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

It is not a de Polignac number, because 620214189 - 25 = 620214157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620214289) 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, 14766984 + ... + 14767025.

It is an arithmetic number, because the mean of its divisors is an integer number (118136040).

Almost surely, 2620214189 is an apocalyptic number.

It is an amenable number.

620214189 is a deficient number, since it is larger than the sum of its proper divisors (324874131).

620214189 is a wasteful number, since it uses less digits than its factorization.

620214189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29534019.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 620214189 is about 24904.0998431985. The cubic root of 620214189 is about 852.8000802309.

The spelling of 620214189 in words is "six hundred twenty million, two hundred fourteen thousand, one hundred eighty-nine".

Divisors: 1 3 7 21 29534009 88602027 206738063 620214189