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47121412569 = 3721129141257
BaseRepresentation
bin101011111000101001…
…111011000111011001
311111121222020210000120
4223320221323013121
51233001040200234
633351451223453
73255466253400
oct537051730731
9144558223016
1047121412569
1118a90899780
129170a47b89
13459c58835a
1423d02d0637
15135bcd5049
hexaf8a7b1d9

47121412569 has 24 divisors (see below), whose sum is σ = 79730481888. Its totient is φ = 24478655040.

The previous prime is 47121412543. The next prime is 47121412589. The reversal of 47121412569 is 96521412174.

It is not a de Polignac number, because 47121412569 - 25 = 47121412537 is a prime.

It is a super-2 number, since 2×471214125692 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47121412569.

It is not an unprimeable number, because it can be changed into a prime (47121412589) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14569012 + ... + 14572245.

It is an arithmetic number, because the mean of its divisors is an integer number (3322103412).

Almost surely, 247121412569 is an apocalyptic number.

47121412569 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

47121412569 is a deficient number, since it is larger than the sum of its proper divisors (32609069319).

47121412569 is a wasteful number, since it uses less digits than its factorization.

47121412569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29141285 (or 29141278 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The spelling of 47121412569 in words is "forty-seven billion, one hundred twenty-one million, four hundred twelve thousand, five hundred sixty-nine".

Divisors: 1 3 7 11 21 33 49 77 147 231 539 1617 29141257 87423771 203988799 320553827 611966397 961661481 1427921593 2243876789 4283764779 6731630367 15707137523 47121412569