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214547028 = 223101177019
BaseRepresentation
bin11001100100110…
…11101001010100
3112221201010012020
430302123221110
5414411001103
633142253140
75213422353
oct1462335124
9487633166
10214547028
111001193a3
125ba271b0
13355ab707
14206cb99a
1513c7e753
hexcc9ba54

214547028 has 24 divisors (see below), whose sum is σ = 505569120. Its totient is φ = 70807200.

The previous prime is 214547027. The next prime is 214547029. The reversal of 214547028 is 820745412.

214547028 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (214547027) and next prime (214547029).

It is a self number, because there is not a number n which added to its sum of digits gives 214547028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214547027) 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, 87298 + ... + 89721.

It is an arithmetic number, because the mean of its divisors is an integer number (21065380).

Almost surely, 2214547028 is an apocalyptic number.

It is an amenable number.

214547028 is an abundant number, since it is smaller than the sum of its proper divisors (291022092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214547028 is a wasteful number, since it uses less digits than its factorization.

214547028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177127 (or 177125 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 214547028 is about 14647.4239373345. The cubic root of 214547028 is about 598.6516276454.

It can be divided in two parts, 21454 and 7028, that added together give a palindrome (28482).

The spelling of 214547028 in words is "two hundred fourteen million, five hundred forty-seven thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 101 202 303 404 606 1212 177019 354038 531057 708076 1062114 2124228 17878919 35757838 53636757 71515676 107273514 214547028