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163120316 = 22173235723
BaseRepresentation
bin10011011100100…
…00010010111100
3102100221101000012
421232100102330
5313224322231
624104122352
74020333302
oct1156202274
9370841005
10163120316
1184093787
12467663b8
1327a43ac8
1417942272
15e4c1e2b
hex9b904bc

163120316 has 12 divisors (see below), whose sum is σ = 287111832. Its totient is φ = 81088368.

The previous prime is 163120313. The next prime is 163120327. The reversal of 163120316 is 613021361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 163120291 and 163120300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163120313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117170 + ... + 118553.

It is an arithmetic number, because the mean of its divisors is an integer number (23925986).

Almost surely, 2163120316 is an apocalyptic number.

It is an amenable number.

163120316 is a deficient number, since it is larger than the sum of its proper divisors (123991516).

163120316 is a wasteful number, since it uses less digits than its factorization.

163120316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235900 (or 235898 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 163120316 is about 12771.8564038279. The cubic root of 163120316 is about 546.3899275154.

Adding to 163120316 its reverse (613021361), we get a palindrome (776141677).

The spelling of 163120316 in words is "one hundred sixty-three million, one hundred twenty thousand, three hundred sixteen".

Divisors: 1 2 4 173 346 692 235723 471446 942892 40780079 81560158 163120316