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20350160 = 245254377
BaseRepresentation
bin100110110100…
…0010011010000
31102021220011122
41031220103100
520202201120
62004101412
7334654625
oct115502320
942256148
1020350160
111053a416
126994868
1342a691c
1429ba34c
151bbea25
hex13684d0

20350160 has 20 divisors (see below), whose sum is σ = 47314308. Its totient is φ = 8140032.

The previous prime is 20350129. The next prime is 20350171. The reversal of 20350160 is 6105302.

It can be written as a sum of positive squares in 2 ways, for example, as 15649936 + 4700224 = 3956^2 + 2168^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127109 + ... + 127268.

Almost surely, 220350160 is an apocalyptic number.

20350160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20350160 is an abundant number, since it is smaller than the sum of its proper divisors (26964148).

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

20350160 is a wasteful number, since it uses less digits than its factorization.

20350160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254390 (or 254384 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 20350160 is about 4511.1151614651. The cubic root of 20350160 is about 273.0167396606.

Adding to 20350160 its reverse (6105302), we get a palindrome (26455462).

The spelling of 20350160 in words is "twenty million, three hundred fifty thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 254377 508754 1017508 1271885 2035016 2543770 4070032 5087540 10175080 20350160