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50135620 = 2254161141
BaseRepresentation
bin1011111101000…
…0001001000100
310111100011010211
42333100021010
5100313314440
64550325204
71146100663
oct277201104
9114304124
1050135620
11263336a7
1214959804
13a505062
146930dda
154604eea
hex2fd0244

50135620 has 24 divisors (see below), whose sum is σ = 107854488. Its totient is φ = 19564800.

The previous prime is 50135609. The next prime is 50135621. The reversal of 50135620 is 2653105.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5299204 + 44836416 = 2302^2 + 6696^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50135591 and 50135600.

It is not an unprimeable number, because it can be changed into a prime (50135621) 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, 29751 + ... + 31390.

It is an arithmetic number, because the mean of its divisors is an integer number (4493937).

Almost surely, 250135620 is an apocalyptic number.

It is an amenable number.

50135620 is an abundant number, since it is smaller than the sum of its proper divisors (57718868).

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

50135620 is a wasteful number, since it uses less digits than its factorization.

50135620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61191 (or 61189 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 50135620 is about 7080.6511000049. The cubic root of 50135620 is about 368.7359347312.

Adding to 50135620 its reverse (2653105), we get a palindrome (52788725).

The spelling of 50135620 in words is "fifty million, one hundred thirty-five thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 61141 122282 244564 305705 611410 1222820 2506781 5013562 10027124 12533905 25067810 50135620