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163214405 = 5269121349
BaseRepresentation
bin10011011101001…
…11010001000101
3102101010011001222
421232213101011
5313240330110
624110130125
74021204514
oct1156472105
9371104058
10163214405
1184148442
12467b0945
1327a77893
141796867b
15e4dec55
hex9ba7445

163214405 has 8 divisors (see below), whose sum is σ = 196587000. Its totient is φ = 130085056.

The previous prime is 163214383. The next prime is 163214423. The reversal of 163214405 is 504412361.

163214405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2989441 + 160224964 = 1729^2 + 12658^2 .

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 163214405 - 210 = 163213381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59330 + ... + 62019.

It is an arithmetic number, because the mean of its divisors is an integer number (24573375).

Almost surely, 2163214405 is an apocalyptic number.

It is an amenable number.

163214405 is a deficient number, since it is larger than the sum of its proper divisors (33372595).

163214405 is a wasteful number, since it uses less digits than its factorization.

163214405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121623.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 163214405 is about 12775.5393232536. The cubic root of 163214405 is about 546.4949612351.

Adding to 163214405 its reverse (504412361), we get a palindrome (667626766).

The spelling of 163214405 in words is "one hundred sixty-three million, two hundred fourteen thousand, four hundred five".

Divisors: 1 5 269 1345 121349 606745 32642881 163214405