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163860468 = 22313655039
BaseRepresentation
bin10011100010001…
…00111111110100
3102102022222022020
421301010333310
5313422013333
624132033140
74026535212
oct1161047764
9372288266
10163860468
1184549882
1246a627b0
1327c42975
1417a95cb2
15e5bb3b3
hex9c44ff4

163860468 has 12 divisors (see below), whose sum is σ = 382341120. Its totient is φ = 54620152.

The previous prime is 163860461. The next prime is 163860491. The reversal of 163860468 is 864068361.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163860461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6827508 + ... + 6827531.

It is an arithmetic number, because the mean of its divisors is an integer number (31861760).

Almost surely, 2163860468 is an apocalyptic number.

It is an amenable number.

163860468 is an abundant number, since it is smaller than the sum of its proper divisors (218480652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163860468 is a wasteful number, since it uses less digits than its factorization.

163860468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13655046 (or 13655044 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 163860468 is about 12800.7995062808. The cubic root of 163860468 is about 547.2150883078.

The spelling of 163860468 in words is "one hundred sixty-three million, eight hundred sixty thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13655039 27310078 40965117 54620156 81930234 163860468