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214143169 = 1712596657
BaseRepresentation
bin11001100001110…
…01000011000001
3112220221121012111
430300321003001
5414310040134
633125455321
75210121052
oct1460710301
9486847174
10214143169
11aa972a29
125b871541
1335499946
1420624729
1513beec64
hexcc390c1

214143169 has 4 divisors (see below), whose sum is σ = 226739844. Its totient is φ = 201546496.

The previous prime is 214143157. The next prime is 214143187. The reversal of 214143169 is 961341412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114383025 + 99760144 = 10695^2 + 9988^2 .

It is a cyclic number.

It is not a de Polignac number, because 214143169 - 215 = 214110401 is a prime.

It is a super-2 number, since 2×2141431692 = 91714593658725122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214143169.

It is not an unprimeable number, because it can be changed into a prime (214143199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6298312 + ... + 6298345.

It is an arithmetic number, because the mean of its divisors is an integer number (56684961).

Almost surely, 2214143169 is an apocalyptic number.

It is an amenable number.

214143169 is a deficient number, since it is larger than the sum of its proper divisors (12596675).

214143169 is a wasteful number, since it uses less digits than its factorization.

214143169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12596674.

The product of its digits is 5184, while the sum is 31.

The square root of 214143169 is about 14633.6314358398. The cubic root of 214143169 is about 598.2757617878.

The spelling of 214143169 in words is "two hundred fourteen million, one hundred forty-three thousand, one hundred sixty-nine".

Divisors: 1 17 12596657 214143169