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50886640247 = 412803442789
BaseRepresentation
bin101111011001000101…
…001000001001110111
311212100101012011101112
4233121011020021313
51313203434441442
635213233145235
73451006206512
oct573105101167
9155311164345
1050886640247
111a6431aaa93
129a419bb21b
134a4c669521
14266a3add79
1514cc633082
hexbd9148277

50886640247 has 8 divisors (see below), whose sum is σ = 52146492720. Its totient is φ = 49627679040.

The previous prime is 50886640241. The next prime is 50886640249. The reversal of 50886640247 is 74204668805.

It is a happy number.

50886640247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50886640247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50886640195 and 50886640204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50886640241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106472 + ... + 336317.

It is an arithmetic number, because the mean of its divisors is an integer number (6518311590).

Almost surely, 250886640247 is an apocalyptic number.

50886640247 is a deficient number, since it is larger than the sum of its proper divisors (1259852473).

50886640247 is a wasteful number, since it uses less digits than its factorization.

50886640247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445633.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 50886640247 in words is "fifty billion, eight hundred eighty-six million, six hundred forty thousand, two hundred forty-seven".

Divisors: 1 41 2803 114923 442789 18154349 1241137567 50886640247