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50811808 = 251587869
BaseRepresentation
bin1100000111010…
…1001110100000
310112121111200211
43001311032200
5101001434213
65013023504
71154615245
oct301651640
9115544624
1050811808
1126755733
1215024b94
13a6b0a78
146a695cc
1546da53d
hex30753a0

50811808 has 12 divisors (see below), whose sum is σ = 100035810. Its totient is φ = 25405888.

The previous prime is 50811797. The next prime is 50811851. The reversal of 50811808 is 80811805.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 34715664 + 16096144 = 5892^2 + 4012^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 50811808.

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 as a sum of consecutive naturals, namely, 793903 + ... + 793966.

Almost surely, 250811808 is an apocalyptic number.

It is an amenable number.

50811808 is a deficient number, since it is larger than the sum of its proper divisors (49224002).

50811808 is a wasteful number, since it uses less digits than its factorization.

50811808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587879 (or 1587871 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 50811808 is about 7128.2401755272. The cubic root of 50811808 is about 370.3862730041.

It can be divided in two parts, 5081 and 1808, that added together give a square (6889 = 832).

The spelling of 50811808 in words is "fifty million, eight hundred eleven thousand, eight hundred eight".

Divisors: 1 2 4 8 16 32 1587869 3175738 6351476 12702952 25405904 50811808