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20094080 = 27531397
BaseRepresentation
bin100110010100…
…1110010000000
31101210212220012
41030221302000
520121002310
61554404052
7332540216
oct114516200
941725805
1020094080
1110384a86
126890628
1342171b6
142950cb6
151b6dc05
hex1329c80

20094080 has 32 divisors (see below), whose sum is σ = 48038940. Its totient is φ = 8037376.

The previous prime is 20094047. The next prime is 20094083. The reversal of 20094080 is 8049002.

It can be written as a sum of positive squares in 2 ways, for example, as 19855936 + 238144 = 4456^2 + 488^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (20094083) 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, 15059 + ... + 16338.

Almost surely, 220094080 is an apocalyptic number.

20094080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20094080 is an abundant number, since it is smaller than the sum of its proper divisors (27944860).

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

20094080 is an equidigital number, since it uses as much as digits as its factorization.

20094080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31416 (or 31404 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 20094080 is about 4482.6420780607. The cubic root of 20094080 is about 271.8667167072.

The spelling of 20094080 in words is "twenty million, ninety-four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 31397 62794 125588 156985 251176 313970 502352 627940 1004704 1255880 2009408 2511760 4018816 5023520 10047040 20094080