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47974919020 = 22572172233727
BaseRepresentation
bin101100101011100001…
…110010101101101100
311120211110021101202121
4230223201302231230
51241223034402040
634012301002324
73315602040400
oct545341625554
9146743241677
1047974919020
1119389655806
12936a8533a4
1346a7353662
1424717c7100
1513abbcac4a
hexb2b872b6c

47974919020 has 216 divisors, whose sum is σ = 125201565216. Its totient is φ = 15393337344.

The previous prime is 47974919009. The next prime is 47974919051. The reversal of 47974919020 is 2091947974.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 65989897 + ... + 65990623.

It is an arithmetic number, because the mean of its divisors is an integer number (579636876).

Almost surely, 247974919020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47974919020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62600782608).

47974919020 is an abundant number, since it is smaller than the sum of its proper divisors (77226646196).

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

47974919020 is a wasteful number, since it uses less digits than its factorization.

47974919020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 47974919020 in words is "forty-seven billion, nine hundred seventy-four million, nine hundred nineteen thousand, twenty".