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214420185 = 32576111159
BaseRepresentation
bin11001100011111…
…00101011011001
3112221110200012100
430301330223121
5414342421220
633135434013
75212353510
oct1461745331
9487420170
10214420185
11100042071
125b985909
1335565a65
1420697677
1513c56d90
hexcc7cad9

214420185 has 48 divisors (see below), whose sum is σ = 431758080. Its totient is φ = 96405120.

The previous prime is 214420177. The next prime is 214420223. The reversal of 214420185 is 581024412.

It is not a de Polignac number, because 214420185 - 23 = 214420177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13636 + ... + 24794.

It is an arithmetic number, because the mean of its divisors is an integer number (8994960).

Almost surely, 2214420185 is an apocalyptic number.

It is an amenable number.

214420185 is an abundant number, since it is smaller than the sum of its proper divisors (217337895).

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

214420185 is a wasteful number, since it uses less digits than its factorization.

214420185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11238 (or 11235 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 214420185 is about 14643.0934231808. The cubic root of 214420185 is about 598.5336275057.

Adding to 214420185 its reverse (581024412), we get a palindrome (795444597).

The spelling of 214420185 in words is "two hundred fourteen million, four hundred twenty thousand, one hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 35 45 61 63 105 183 305 315 427 549 915 1281 2135 2745 3843 6405 11159 19215 33477 55795 78113 100431 167385 234339 390565 502155 680699 703017 1171695 2042097 3403495 3515085 4764893 6126291 10210485 14294679 23824465 30631455 42884037 71473395 214420185