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51830043 = 319909299
BaseRepresentation
bin1100010110110…
…1110100011011
310121112020110020
43011231310123
5101232030133
65050521523
71166355666
oct305556433
9117466406
1051830043
1127290751
12154362a3
13a979385
146c526dd
15483c0b3
hex316dd1b

51830043 has 8 divisors (see below), whose sum is σ = 72744000. Its totient is φ = 32734728.

The previous prime is 51830039. The next prime is 51830057. The reversal of 51830043 is 34003815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51830043 - 22 = 51830039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51829995 and 51830022.

It is not an unprimeable number, because it can be changed into a prime (51830003) 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, 454593 + ... + 454706.

It is an arithmetic number, because the mean of its divisors is an integer number (9093000).

Almost surely, 251830043 is an apocalyptic number.

51830043 is a deficient number, since it is larger than the sum of its proper divisors (20913957).

51830043 is a wasteful number, since it uses less digits than its factorization.

51830043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909321.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 51830043 is about 7199.3085084611. The cubic root of 51830043 is about 372.8440267213.

Adding to 51830043 its reverse (34003815), we get a palindrome (85833858).

The spelling of 51830043 in words is "fifty-one million, eight hundred thirty thousand, forty-three".

Divisors: 1 3 19 57 909299 2727897 17276681 51830043