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50738013001 = 132173272
BaseRepresentation
bin101111010000001110…
…001010001101001001
311211222000112010010201
4233100032022031021
51312402412404001
635150403412201
73444222665104
oct572016121511
9154860463121
1050738013001
111a577316155
129a00084061
134a2792b400
14265476173b
1514be575501
hexbd038a349

50738013001 has 9 divisors (see below), whose sum is σ = 54944333031. Its totient is φ = 46832385912.

The previous prime is 50738012999. The next prime is 50738013031. The reversal of 50738013001 is 10031083705.

The square root of 50738013001 is 225251.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7505623225 + 43232389776 = 86635^2 + 207924^2 .

It is not a de Polignac number, because 50738013001 - 21 = 50738012999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50738013031) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2919600 + ... + 2936926.

Almost surely, 250738013001 is an apocalyptic number.

50738013001 is the 225251-st square number.

50738013001 is the 112626-th centered octagonal number.

It is an amenable number.

50738013001 is a deficient number, since it is larger than the sum of its proper divisors (4206320030).

50738013001 is an frugal number, since it uses more digits than its factorization.

50738013001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34680 (or 17340 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 50738013001 its reverse (10031083705), we get a palindrome (60769096706).

The spelling of 50738013001 in words is "fifty billion, seven hundred thirty-eight million, thirteen thousand, one".

Divisors: 1 13 169 17327 225251 2928263 300224929 3902924077 50738013001