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20073230 = 254742709
BaseRepresentation
bin100110010010…
…0101100001110
31101202211021222
41030210230032
520114320410
61554123342
7332422352
oct114445416
941684258
1020073230
1110370351
126880552
13420a868
142947462
151b67955
hex1324b0e

20073230 has 16 divisors (see below), whose sum is σ = 36901440. Its totient is φ = 7858272.

The previous prime is 20073211. The next prime is 20073247. The reversal of 20073230 is 3237002.

It is a junction number, because it is equal to n+sod(n) for n = 20073199 and 20073208.

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 7 ways as a sum of consecutive naturals, for example, 20885 + ... + 21824.

It is an arithmetic number, because the mean of its divisors is an integer number (2306340).

Almost surely, 220073230 is an apocalyptic number.

20073230 is a deficient number, since it is larger than the sum of its proper divisors (16828210).

20073230 is a wasteful number, since it uses less digits than its factorization.

20073230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42763.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 20073230 is about 4480.3158370811. The cubic root of 20073230 is about 271.7726528050.

The spelling of 20073230 in words is "twenty million, seventy-three thousand, two hundred thirty".

Divisors: 1 2 5 10 47 94 235 470 42709 85418 213545 427090 2007323 4014646 10036615 20073230