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47442441647 = 195209479357
BaseRepresentation
bin101100001011110010…
…100011010110101111
311112110100022202010102
4230023302203112233
51234130231113042
633443400101315
73266445046256
oct541362432657
9145410282112
1047442441647
1119136026667
12924046483b
134620c39aa3
142420bb979d
15137a099b32
hexb0bca35af

47442441647 has 8 divisors (see below), whose sum is σ = 49949103600. Its totient is φ = 44936748864.

The previous prime is 47442441623. The next prime is 47442441707. The reversal of 47442441647 is 74614424474.

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 47442441647 - 210 = 47442440623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47442441547) 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, 140708 + ... + 338649.

It is an arithmetic number, because the mean of its divisors is an integer number (6243637950).

Almost surely, 247442441647 is an apocalyptic number.

47442441647 is a deficient number, since it is larger than the sum of its proper divisors (2506661953).

47442441647 is a wasteful number, since it uses less digits than its factorization.

47442441647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484585.

The product of its digits is 2408448, while the sum is 47.

The spelling of 47442441647 in words is "forty-seven billion, four hundred forty-two million, four hundred forty-one thousand, six hundred forty-seven".

Divisors: 1 19 5209 98971 479357 9107783 2496970613 47442441647