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163060420 = 2258153021
BaseRepresentation
bin10011011100000…
…01101011000100
3102100211022211211
421232001223010
5313220413140
624102541204
74016663545
oct1156015304
9370738754
10163060420
1184052786
1246737804
1327a22773
14179284cc
15e4ae2ea
hex9b81ac4

163060420 has 12 divisors (see below), whose sum is σ = 342426924. Its totient is φ = 65224160.

The previous prime is 163060351. The next prime is 163060421. The reversal of 163060420 is 24060361.

It can be written as a sum of positive squares in 2 ways, for example, as 43639236 + 119421184 = 6606^2 + 10928^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163060391 and 163060400.

It is not an unprimeable number, because it can be changed into a prime (163060421) 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, 4076491 + ... + 4076530.

It is an arithmetic number, because the mean of its divisors is an integer number (28535577).

Almost surely, 2163060420 is an apocalyptic number.

163060420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163060420 is an abundant number, since it is smaller than the sum of its proper divisors (179366504).

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

163060420 is a wasteful number, since it uses less digits than its factorization.

163060420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8153030 (or 8153028 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 163060420 is about 12769.5113453883. The cubic root of 163060420 is about 546.3230431887.

The spelling of 163060420 in words is "one hundred sixty-three million, sixty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 8153021 16306042 32612084 40765105 81530210 163060420