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50512113001 = 729723312
BaseRepresentation
bin101111000010110000…
…011010110101101001
311211101021110012121001
4233002300122311221
51311422100104001
635112133515001
73435510606400
oct570260326551
9154337405531
1050512113001
111a470853139
1299584a2a61
1349bcba637c
14263275a637
1514a9802001
hexbc2c1ad69

50512113001 has 27 divisors (see below), whose sum is σ = 59550906807. Its totient is φ = 42720289920.

The previous prime is 50512112993. The next prime is 50512113097. The reversal of 50512113001 is 10031121505.

The square root of 50512113001 is 224749.

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

50512113001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 22681866025 + 27830246976 = 150605^2 + 166824^2 .

It is not a de Polignac number, because 50512113001 - 23 = 50512112993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50512113001.

It is not an unprimeable number, because it can be changed into a prime (50512113401) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 152604406 + ... + 152604736.

It is an arithmetic number, because the mean of its divisors is an integer number (2205589141).

Almost surely, 250512113001 is an apocalyptic number.

50512113001 is the 224749-th square number.

50512113001 is the 112375-th centered octagonal number.

It is an amenable number.

50512113001 is a deficient number, since it is larger than the sum of its proper divisors (9038793806).

50512113001 is an frugal number, since it uses more digits than its factorization.

50512113001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 50512113001 its reverse (10031121505), we get a palindrome (60543234506).

The spelling of 50512113001 in words is "fifty billion, five hundred twelve million, one hundred thirteen thousand, one".

Divisors: 1 7 49 97 331 679 2317 4753 9409 16219 32107 65863 109561 224749 461041 766927 1573243 3114379 5368489 10627417 21800653 74391919 152604571 520743433 1030859449 7216016143 50512113001