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16163020 = 2252341857
BaseRepresentation
bin111101101010…
…000011001100
31010102011111101
4331222003030
513114204040
61334232444
7254245336
oct75520314
933364441
1016163020
11913a575
1254b5724
13346bb23
14220a456
15164409a
hexf6a0cc

16163020 has 48 divisors (see below), whose sum is σ = 36324288. Its totient is φ = 6026240.

The previous prime is 16163009. The next prime is 16163029. The reversal of 16163020 is 2036161.

16163020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161630202 = 522486431040800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16163029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18432 + ... + 19288.

It is an arithmetic number, because the mean of its divisors is an integer number (756756).

Almost surely, 216163020 is an apocalyptic number.

16163020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16163020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18162144).

16163020 is an abundant number, since it is smaller than the sum of its proper divisors (20161268).

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

16163020 is a wasteful number, since it uses less digits than its factorization.

16163020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 16163020 is about 4020.3258574399. The cubic root of 16163020 is about 252.8371211779.

Adding to 16163020 its reverse (2036161), we get a palindrome (18199181).

The spelling of 16163020 in words is "sixteen million, one hundred sixty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 23 41 46 82 92 115 164 205 230 410 460 820 857 943 1714 1886 3428 3772 4285 4715 8570 9430 17140 18860 19711 35137 39422 70274 78844 98555 140548 175685 197110 351370 394220 702740 808151 1616302 3232604 4040755 8081510 16163020