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50420031 = 346136457
BaseRepresentation
bin1100000001010…
…1100100111111
310111212121021120
43000111210333
5100401420111
65000402023
71151364114
oct300254477
9114777246
1050420031
1126508352
1214a76313
13a5a464c
1469a690b
15465e406
hex301593f

50420031 has 8 divisors (see below), whose sum is σ = 67374384. Its totient is φ = 33539520.

The previous prime is 50420023. The next prime is 50420057. The reversal of 50420031 is 13002405.

50420031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 50420031 - 23 = 50420023 is a prime.

It is a super-2 number, since 2×504200312 = 5084359052081922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50420131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16846 + ... + 19611.

It is an arithmetic number, because the mean of its divisors is an integer number (8421798).

Almost surely, 250420031 is an apocalyptic number.

50420031 is a deficient number, since it is larger than the sum of its proper divisors (16954353).

50420031 is a wasteful number, since it uses less digits than its factorization.

50420031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36921.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 50420031 is about 7100.7063733124. The cubic root of 50420031 is about 369.4318795198.

Adding to 50420031 its reverse (13002405), we get a palindrome (63422436).

The spelling of 50420031 in words is "fifty million, four hundred twenty thousand, thirty-one".

Divisors: 1 3 461 1383 36457 109371 16806677 50420031