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214120155 = 35131108967
BaseRepresentation
bin11001100001100…
…11011011011011
3112220220102122010
430300303123123
5414303321110
633125201003
75206664004
oct1460633333
9486812563
10214120155
11aa957707
125b860163
133548c322
142061a1ab
1513be8020
hexcc336db

214120155 has 16 divisors (see below), whose sum is σ = 345210624. Its totient is φ = 113324640.

The previous prime is 214120111. The next prime is 214120189. The reversal of 214120155 is 551021412.

It is not a de Polignac number, because 214120155 - 215 = 214087387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52519 + ... + 56448.

It is an arithmetic number, because the mean of its divisors is an integer number (21575664).

Almost surely, 2214120155 is an apocalyptic number.

214120155 is a deficient number, since it is larger than the sum of its proper divisors (131090469).

214120155 is a wasteful number, since it uses less digits than its factorization.

214120155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109106.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 214120155 is about 14632.8450753775. The cubic root of 214120155 is about 598.2543287566.

Adding to 214120155 its reverse (551021412), we get a palindrome (765141567).

The spelling of 214120155 in words is "two hundred fourteen million, one hundred twenty thousand, one hundred fifty-five".

Divisors: 1 3 5 15 131 393 655 1965 108967 326901 544835 1634505 14274677 42824031 71373385 214120155