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214230138 = 23832771553
BaseRepresentation
bin11001100010011…
…10010001111010
3112221010000111120
430301032101322
5414320331023
633131410110
75210632443
oct1461162172
9487100446
10214230138
11aaa22301
125b8b3936
13354ca3c5
14206482ca
1513c1a8e3
hexcc4e47a

214230138 has 32 divisors (see below), whose sum is σ = 435468096. Its totient is φ = 70249728.

The previous prime is 214230131. The next prime is 214230143. The reversal of 214230138 is 831032412.

214230138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (214230131) 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, 137170 + ... + 138722.

It is an arithmetic number, because the mean of its divisors is an integer number (13608378).

Almost surely, 2214230138 is an apocalyptic number.

214230138 is an abundant number, since it is smaller than the sum of its proper divisors (221237958).

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

214230138 is a wasteful number, since it uses less digits than its factorization.

214230138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 214230138 is about 14636.6026795838. The cubic root of 214230138 is about 598.3567425055.

The spelling of 214230138 in words is "two hundred fourteen million, two hundred thirty thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 83 166 249 277 498 554 831 1553 1662 3106 4659 9318 22991 45982 68973 128899 137946 257798 386697 430181 773394 860362 1290543 2581086 35705023 71410046 107115069 214230138