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20473076 = 2213393713
BaseRepresentation
bin100111000011…
…0010011110100
31102112010210002
41032012103310
520220114301
62010450432
7336006161
oct116062364
942463702
1020473076
11106137a8
126a33a18
13431a860
142a0d068
151be616b
hex13864f4

20473076 has 12 divisors (see below), whose sum is σ = 38583972. Its totient is φ = 9449088.

The previous prime is 20473067. The next prime is 20473081. The reversal of 20473076 is 67037402.

It can be written as a sum of positive squares in 2 ways, for example, as 6604900 + 13868176 = 2570^2 + 3724^2 .

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, 196805 + ... + 196908.

It is an arithmetic number, because the mean of its divisors is an integer number (3215331).

Almost surely, 220473076 is an apocalyptic number.

20473076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20473076 is a deficient number, since it is larger than the sum of its proper divisors (18110896).

20473076 is a wasteful number, since it uses less digits than its factorization.

20473076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393730 (or 393728 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 20473076 is about 4524.7183337750. The cubic root of 20473076 is about 273.5653149891.

The spelling of 20473076 in words is "twenty million, four hundred seventy-three thousand, seventy-six".

Divisors: 1 2 4 13 26 52 393713 787426 1574852 5118269 10236538 20473076