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47949527808 = 2832721337883
BaseRepresentation
bin101100101010000000…
…111011101100000000
311120202200111101120100
4230222000323230000
51241200034342213
634005552442400
73315143155500
oct545200735400
9146680441510
1047949527808
1119376292a36
129362249400
1346a2003380
14246c297a00
1513a9862773
hexb2a03bb00

47949527808 has 648 divisors, whose sum is σ = 178075021488. Its totient is φ = 12290310144.

The previous prime is 47949527789. The next prime is 47949527819. The reversal of 47949527808 is 80872594974.

47949527808 is a `hidden beast` number, since 4 + 79 + 495 + 2 + 78 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 54302535 + ... + 54303417.

Almost surely, 247949527808 is an apocalyptic number.

47949527808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47949527808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89037510744).

47949527808 is an abundant number, since it is smaller than the sum of its proper divisors (130125493680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47949527808 is a wasteful number, since it uses less digits than its factorization.

47949527808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 63.

The spelling of 47949527808 in words is "forty-seven billion, nine hundred forty-nine million, five hundred twenty-seven thousand, eight hundred eight".