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50912020 = 22519133979
BaseRepresentation
bin1100001000110…
…1101100010100
310112210121011101
43002031230110
5101013141040
65015115444
71155513355
oct302155424
9115717141
1050912020
1126813a55
1215072b84
13a717573
146a93d2c
15470a09a
hex308db14

50912020 has 24 divisors (see below), whose sum is σ = 112543200. Its totient is φ = 19292832.

The previous prime is 50912011. The next prime is 50912051. The reversal of 50912020 is 2021905.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 66610 + ... + 67369.

It is an arithmetic number, because the mean of its divisors is an integer number (4689300).

Almost surely, 250912020 is an apocalyptic number.

It is an amenable number.

50912020 is an abundant number, since it is smaller than the sum of its proper divisors (61631180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50912020 is a wasteful number, since it uses less digits than its factorization.

50912020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134007 (or 134005 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 50912020 is about 7135.2659375807. The cubic root of 50912020 is about 370.6296073543.

Adding to 50912020 its reverse (2021905), we get a palindrome (52933925).

The spelling of 50912020 in words is "fifty million, nine hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 133979 267958 535916 669895 1339790 2545601 2679580 5091202 10182404 12728005 25456010 50912020