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20673132 = 22315710973
BaseRepresentation
bin100111011011…
…1001001101100
31102220022012120
41032313021230
520243020012
62015032540
7340501344
oct116671154
942808176
1020673132
1110740037
126b0b750
13438a92c
142a61d24
151c3558c
hex13b726c

20673132 has 24 divisors (see below), whose sum is σ = 48548976. Its totient is φ = 6846528.

The previous prime is 20673131. The next prime is 20673137. The reversal of 20673132 is 23137602.

It is not an unprimeable number, because it can be changed into a prime (20673131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3603 + ... + 7370.

It is an arithmetic number, because the mean of its divisors is an integer number (2022874).

Almost surely, 220673132 is an apocalyptic number.

It is an amenable number.

20673132 is an abundant number, since it is smaller than the sum of its proper divisors (27875844).

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

20673132 is a wasteful number, since it uses less digits than its factorization.

20673132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11137 (or 11135 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 20673132 is about 4546.7716019171. The cubic root of 20673132 is about 274.4534909475.

The spelling of 20673132 in words is "twenty million, six hundred seventy-three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 157 314 471 628 942 1884 10973 21946 32919 43892 65838 131676 1722761 3445522 5168283 6891044 10336566 20673132