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20120476 = 2215113329
BaseRepresentation
bin100110011000…
…0001110011100
31101212020002211
41030300032130
520122323401
61555130204
7333010165
oct114601634
941766084
1020120476
11103a28a2
1268a3964
13422620c
14295a76c
151b76951
hex133039c

20120476 has 12 divisors (see below), whose sum is σ = 35244720. Its totient is φ = 10050560.

The previous prime is 20120467. The next prime is 20120491. The reversal of 20120476 is 67402102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4380 + ... + 7708.

It is an arithmetic number, because the mean of its divisors is an integer number (2937060).

Almost surely, 220120476 is an apocalyptic number.

It is an amenable number.

20120476 is a deficient number, since it is larger than the sum of its proper divisors (15124244).

20120476 is a wasteful number, since it uses less digits than its factorization.

20120476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844 (or 4842 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 20120476 is about 4485.5853575648. The cubic root of 20120476 is about 271.9857078707.

Adding to 20120476 its reverse (67402102), we get a palindrome (87522578).

The spelling of 20120476 in words is "twenty million, one hundred twenty thousand, four hundred seventy-six".

Divisors: 1 2 4 1511 3022 3329 6044 6658 13316 5030119 10060238 20120476