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163312201 = 1319661183
BaseRepresentation
bin10011011101111…
…11001001001001
3102101022010020001
421232333021021
5313301442301
624112203001
74022062603
oct1156771111
9371263201
10163312201
1184204968
1246839461
1327ab0250
1417992173
15e50dc01
hex9bbf249

163312201 has 8 divisors (see below), whose sum is σ = 185131520. Its totient is φ = 142815312.

The previous prime is 163312187. The next prime is 163312231. The reversal of 163312201 is 102213361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163312201 - 215 = 163279433 is a prime.

It is a super-3 number, since 3×1633122013 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163312231) 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, 330345 + ... + 330838.

It is an arithmetic number, because the mean of its divisors is an integer number (23141440).

Almost surely, 2163312201 is an apocalyptic number.

It is an amenable number.

163312201 is a deficient number, since it is larger than the sum of its proper divisors (21819319).

163312201 is a wasteful number, since it uses less digits than its factorization.

163312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661215.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 163312201 is about 12779.3662205917. The cubic root of 163312201 is about 546.6040903900.

Adding to 163312201 its reverse (102213361), we get a palindrome (265525562).

The spelling of 163312201 in words is "one hundred sixty-three million, three hundred twelve thousand, two hundred one".

Divisors: 1 13 19 247 661183 8595379 12562477 163312201