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50731430 = 257964217
BaseRepresentation
bin1100000110000…
…1100110100110
310112110102102212
43001201212212
5100441401210
65011203422
71154132021
oct301414646
9115412385
1050731430
1126700302
1214ba6572
13a6832c9
146a481b8
1546c1805
hex30619a6

50731430 has 16 divisors (see below), whose sum is σ = 92473920. Its totient is φ = 20035392.

The previous prime is 50731409. The next prime is 50731433. The reversal of 50731430 is 3413705.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50731396 and 50731405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50731433) by changing a digit.

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, 31319 + ... + 32898.

It is an arithmetic number, because the mean of its divisors is an integer number (5779620).

Almost surely, 250731430 is an apocalyptic number.

50731430 is a deficient number, since it is larger than the sum of its proper divisors (41742490).

50731430 is a wasteful number, since it uses less digits than its factorization.

50731430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64303.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 50731430 is about 7122.5999466487. The cubic root of 50731430 is about 370.1908681642.

The spelling of 50731430 in words is "fifty million, seven hundred thirty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 79 158 395 790 64217 128434 321085 642170 5073143 10146286 25365715 50731430