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20607873 = 311313397
BaseRepresentation
bin100111010011…
…1001110000001
31102202222200120
41032213032001
520233422443
62013410453
7340110156
oct116471601
942688616
1020607873
11106a6000
126a99a29
134367010
142a4622d
151c21083
hex13a7381

20607873 has 32 divisors (see below), whose sum is σ = 32629632. Its totient is φ = 11499840.

The previous prime is 20607863. The next prime is 20607889. The reversal of 20607873 is 37870602.

It is not a de Polignac number, because 20607873 - 24 = 20607857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20607833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51711 + ... + 52107.

It is an arithmetic number, because the mean of its divisors is an integer number (1019676).

Almost surely, 220607873 is an apocalyptic number.

It is an amenable number.

20607873 is a deficient number, since it is larger than the sum of its proper divisors (12021759).

20607873 is a wasteful number, since it uses less digits than its factorization.

20607873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 20607873 is about 4539.5895188882. The cubic root of 20607873 is about 274.1643968774.

The spelling of 20607873 in words is "twenty million, six hundred seven thousand, eight hundred seventy-three".

Divisors: 1 3 11 13 33 39 121 143 363 397 429 1191 1331 1573 3993 4367 4719 5161 13101 15483 17303 48037 51909 56771 144111 170313 528407 624481 1585221 1873443 6869291 20607873