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163240214 = 281620107
BaseRepresentation
bin10011011101011…
…01100100010110
3102101011110110212
421232231210112
5313242141324
624110445422
74021342664
oct1156554426
9371143425
10163240214
1184165875
1246803872
1327a86557
1417973c34
15e4e770e
hex9bad916

163240214 has 4 divisors (see below), whose sum is σ = 244860324. Its totient is φ = 81620106.

The previous prime is 163240201. The next prime is 163240219. The reversal of 163240214 is 412042361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 412042361 = 449917689.

It is a self number, because there is not a number n which added to its sum of digits gives 163240214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163240219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40810052 + ... + 40810055.

It is an arithmetic number, because the mean of its divisors is an integer number (61215081).

Almost surely, 2163240214 is an apocalyptic number.

163240214 is a deficient number, since it is larger than the sum of its proper divisors (81620110).

163240214 is an equidigital number, since it uses as much as digits as its factorization.

163240214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81620109.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 163240214 is about 12776.5493776684. The cubic root of 163240214 is about 546.5237653615.

Adding to 163240214 its reverse (412042361), we get a palindrome (575282575).

The spelling of 163240214 in words is "one hundred sixty-three million, two hundred forty thousand, two hundred fourteen".

Divisors: 1 2 81620107 163240214