Base | Representation |
---|---|
bin | 101110010001001010… |
… | …001011110100111001 |
3 | 11202020021200211000011 |
4 | 232101022023310321 |
5 | 1303221040201312 |
6 | 34453410541521 |
7 | 3406055041654 |
oct | 562112136471 |
9 | 152207624004 |
10 | 49680006457 |
11 | 1a084083184 |
12 | 97658978a1 |
13 | 48b9691733 |
14 | 259403489b |
15 | 145b736da7 |
hex | b9128bd39 |
49680006457 has 4 divisors (see below), whose sum is σ = 52602359796. Its totient is φ = 46757653120.
The previous prime is 49680006419. The next prime is 49680006487. The reversal of 49680006457 is 75460008694.
49680006457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 39139082896 + 10540923561 = 197836^2 + 102669^2 .
It is a cyclic number.
It is not a de Polignac number, because 49680006457 - 219 = 49679482169 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 49680006457.
It is not an unprimeable number, because it can be changed into a prime (49680006407) 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, 1461176644 + ... + 1461176677.
It is an arithmetic number, because the mean of its divisors is an integer number (13150589949).
Almost surely, 249680006457 is an apocalyptic number.
It is an amenable number.
49680006457 is a deficient number, since it is larger than the sum of its proper divisors (2922353339).
49680006457 is a wasteful number, since it uses less digits than its factorization.
49680006457 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2922353338.
The product of its (nonzero) digits is 1451520, while the sum is 49.
The spelling of 49680006457 in words is "forty-nine billion, six hundred eighty million, six thousand, four hundred fifty-seven".
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