Base | Representation |
---|---|
bin | 101111001000011100… |
… | …000110110110000001 |
3 | 11211121220211220110100 |
4 | 233020130012312001 |
5 | 1312121001422041 |
6 | 35125421153013 |
7 | 3441046145304 |
oct | 571034066601 |
9 | 154556756410 |
10 | 50607451521 |
11 | 1a50a650400 |
12 | 99843bb769 |
13 | 4a068771b3 |
14 | 2641296b3b |
15 | 14b2d856b6 |
hex | bc8706d81 |
50607451521 has 81 divisors (see below), whose sum is σ = 85567036009. Its totient is φ = 28795008000.
The previous prime is 50607451459. The next prime is 50607451529. The reversal of 50607451521 is 12515470605.
The square root of 50607451521 is 224961.
It is a perfect power (a square), and thus also a powerful number.
50607451521 is a `hidden beast` number, since 5 + 0 + 60 + 74 + 5 + 1 + 521 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 34948433025 + 15659018496 = 186945^2 + 125136^2 .
It is not a de Polignac number, because 50607451521 - 215 = 50607418753 is a prime.
It is a super-2 number, since 2×506074515212 (a number of 22 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (50607451529) by changing a digit.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 126202921 + ... + 126203321.
Almost surely, 250607451521 is an apocalyptic number.
50607451521 is a gapful number since it is divisible by the number (51) formed by its first and last digit.
50607451521 is the 224961-st square number.
50607451521 is the 112481-st centered octagonal number.
It is an amenable number.
50607451521 is a deficient number, since it is larger than the sum of its proper divisors (34959584488).
50607451521 is a wasteful number, since it uses less digits than its factorization.
50607451521 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 864 (or 432 counting only the distinct ones).
The product of its (nonzero) digits is 42000, while the sum is 36.
Multiplying 50607451521 by its sum of digits (36), we get a square (1821868254756 = 13497662).
The spelling of 50607451521 in words is "fifty billion, six hundred seven million, four hundred fifty-one thousand, five hundred twenty-one".
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