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47488620457 = 1319170921067
BaseRepresentation
bin101100001110100010…
…101101011110101001
311112120120012212112201
4230032202231132221
51234224041323312
633452125540201
73300545420335
oct541642553651
9145516185481
1047488620457
111915a0a7473
129253a14661
13462a687b25
142426d9a7c5
15137e16c557
hexb0e8ad7a9

47488620457 has 8 divisors (see below), whose sum is σ = 47554689600. Its totient is φ = 47422599504.

The previous prime is 47488620449. The next prime is 47488620493. The reversal of 47488620457 is 75402688474.

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

It is a cyclic number.

It is not a de Polignac number, because 47488620457 - 23 = 47488620449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47488620398 and 47488620407.

It is not an unprimeable number, because it can be changed into a prime (47488620407) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2243638 + ... + 2264704.

It is an arithmetic number, because the mean of its divisors is an integer number (5944336200).

Almost surely, 247488620457 is an apocalyptic number.

It is an amenable number.

47488620457 is a deficient number, since it is larger than the sum of its proper divisors (66069143).

47488620457 is a wasteful number, since it uses less digits than its factorization.

47488620457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24095.

The product of its (nonzero) digits is 12042240, while the sum is 55.

The spelling of 47488620457 in words is "forty-seven billion, four hundred eighty-eight million, six hundred twenty thousand, four hundred fifty-seven".

Divisors: 1 1319 1709 21067 2254171 27787373 36003503 47488620457