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47492613184 = 26272412
BaseRepresentation
bin101100001110110001…
…111100010001000000
311112120211201201112111
4230032301330101000
51234231102110214
633452351305104
73300624360052
oct541661742100
9145524651474
1047492613184
1119161384245
12925521b194
13462b4552a3
1424277198d2
15137e6aa5c4
hexb0ec7c440

47492613184 has 21 divisors (see below), whose sum is σ = 94246614021. Its totient is φ = 23745434880.

The previous prime is 47492613151. The next prime is 47492613187. The reversal of 47492613184 is 48131629474.

It is a happy number.

The square root of 47492613184 is 217928.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 47381099584 + 111513600 = 217672^2 + 10560^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47492613187) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1729804 + ... + 1757044.

It is an arithmetic number, because the mean of its divisors is an integer number (4487934001).

Almost surely, 247492613184 is an apocalyptic number.

47492613184 is the 217928-th square number.

It is an amenable number.

47492613184 is a deficient number, since it is larger than the sum of its proper divisors (46754000837).

47492613184 is an frugal number, since it uses more digits than its factorization.

47492613184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54494 (or 27243 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

Multiplying 47492613184 by its sum of digits (49), we get a square (2327138046016 = 15254962).

The spelling of 47492613184 in words is "forty-seven billion, four hundred ninety-two million, six hundred thirteen thousand, one hundred eighty-four".

Divisors: 1 2 4 8 16 32 64 27241 54482 108964 217928 435856 871712 1743424 742072081 1484144162 2968288324 5936576648 11873153296 23746306592 47492613184