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47387471669 = 1074229104723
BaseRepresentation
bin101100001000100000…
…110110111100110101
311112022111212222111022
4230020200312330311
51234022143043134
633434113550525
73265206602036
oct541040667465
9145274788438
1047387471669
1119107aa092a
129225b75445
134612731485
14241778aa8d
15137533c52e
hexb08836f35

47387471669 has 8 divisors (see below), whose sum is σ = 47842112160. Its totient is φ = 46933049296.

The previous prime is 47387471657. The next prime is 47387471749. The reversal of 47387471669 is 96617478374.

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 47387471669 - 24 = 47387471653 is a prime.

It is a super-3 number, since 3×473874716693 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47387171669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400142 + ... + 504864.

It is an arithmetic number, because the mean of its divisors is an integer number (5980264020).

Almost surely, 247387471669 is an apocalyptic number.

It is an amenable number.

47387471669 is a deficient number, since it is larger than the sum of its proper divisors (454640491).

47387471669 is a wasteful number, since it uses less digits than its factorization.

47387471669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109059.

The product of its digits is 42674688, while the sum is 62.

The spelling of 47387471669 in words is "forty-seven billion, three hundred eighty-seven million, four hundred seventy-one thousand, six hundred sixty-nine".

Divisors: 1 107 4229 104723 452503 11205361 442873567 47387471669