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50030503009 = 371352175757
BaseRepresentation
bin101110100110000011…
…001110010001100001
311210010201012212212221
4232212003032101201
51304430302044014
634552251151041
73420542154544
oct564603162141
9153121185787
1050030503009
111a243a07453
129843145481
13494418c946
1425c87d085b
15147c3bcb24
hexba60ce461

50030503009 has 4 divisors (see below), whose sum is σ = 51382678804. Its totient is φ = 48678327216.

The previous prime is 50030503001. The next prime is 50030503013. The reversal of 50030503009 is 90030503005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90030503005 = 518006100601.

It can be written as a sum of positive squares in 2 ways, for example, as 41479432225 + 8551070784 = 203665^2 + 92472^2 .

It is a cyclic number.

It is not a de Polignac number, because 50030503009 - 23 = 50030503001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50030503001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676087842 + ... + 676087915.

It is an arithmetic number, because the mean of its divisors is an integer number (12845669701).

Almost surely, 250030503009 is an apocalyptic number.

It is an amenable number.

50030503009 is a deficient number, since it is larger than the sum of its proper divisors (1352175795).

50030503009 is a wasteful number, since it uses less digits than its factorization.

50030503009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352175794.

The product of its (nonzero) digits is 2025, while the sum is 25.

The spelling of 50030503009 in words is "fifty billion, thirty million, five hundred three thousand, nine".

Divisors: 1 37 1352175757 50030503009