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168160380 = 22352802673
BaseRepresentation
bin10100000010111…
…10110001111100
3102201102102200020
422001132301330
5321022113010
624404132140
74111224333
oct1201366174
9381372606
10168160380
1186a16423
1248397050
1328ab9bab
1418494d1a
15eb6a470
hexa05ec7c

168160380 has 24 divisors (see below), whose sum is σ = 470849232. Its totient is φ = 44842752.

The previous prime is 168160339. The next prime is 168160387. The reversal of 168160380 is 83061861.

168160380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168160387) 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, 1401277 + ... + 1401396.

It is an arithmetic number, because the mean of its divisors is an integer number (19618718).

Almost surely, 2168160380 is an apocalyptic number.

168160380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168160380 is an abundant number, since it is smaller than the sum of its proper divisors (302688852).

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

168160380 is a wasteful number, since it uses less digits than its factorization.

168160380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802685 (or 2802683 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 168160380 is about 12967.6667137924. Note that the first 3 decimals coincide. The cubic root of 168160380 is about 551.9603652491.

The spelling of 168160380 in words is "one hundred sixty-eight million, one hundred sixty thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2802673 5605346 8408019 11210692 14013365 16816038 28026730 33632076 42040095 56053460 84080190 168160380