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214700389 = 316925819
BaseRepresentation
bin11001100110000…
…01000101100101
3112221222220120021
430303001011211
5414430403024
633145435141
75214631441
oct1463010545
9487886507
10214700389
11100213642
125ba9bab1
1335633467
142072b821
1513caede4
hexccc1165

214700389 has 4 divisors (see below), whose sum is σ = 221626240. Its totient is φ = 207774540.

The previous prime is 214700363. The next prime is 214700401. The reversal of 214700389 is 983007412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214700389 - 25 = 214700357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214700329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3462879 + ... + 3462940.

It is an arithmetic number, because the mean of its divisors is an integer number (55406560).

Almost surely, 2214700389 is an apocalyptic number.

It is an amenable number.

214700389 is a deficient number, since it is larger than the sum of its proper divisors (6925851).

214700389 is an equidigital number, since it uses as much as digits as its factorization.

214700389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6925850.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 214700389 is about 14652.6580865043. The cubic root of 214700389 is about 598.7942349892.

The spelling of 214700389 in words is "two hundred fourteen million, seven hundred thousand, three hundred eighty-nine".

Divisors: 1 31 6925819 214700389