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47205068771 = 7431061147811
BaseRepresentation
bin101011111101101001…
…000010111111100011
311111211210122221202102
4223331221002333203
51233133444200041
633404040241015
73260533315130
oct537551027743
9144753587672
1047205068771
1119024037933
129194a7016b
1345b39c8973
1423db469587
15136430c09b
hexafda42fe3

47205068771 has 16 divisors (see below), whose sum is σ = 55255673088. Its totient is φ = 39483007200.

The previous prime is 47205068731. The next prime is 47205068777. The reversal of 47205068771 is 17786050274.

It is a happy number.

It is not a de Polignac number, because 47205068771 - 26 = 47205068707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47205068777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245456 + ... + 393266.

It is an arithmetic number, because the mean of its divisors is an integer number (3453479568).

Almost surely, 247205068771 is an apocalyptic number.

47205068771 is a deficient number, since it is larger than the sum of its proper divisors (8050604317).

47205068771 is a wasteful number, since it uses less digits than its factorization.

47205068771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148922.

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 47205068771 in words is "forty-seven billion, two hundred five million, sixty-eight thousand, seven hundred seventy-one".

Divisors: 1 7 43 301 1061 7427 45623 147811 319361 1034677 6355873 44491111 156827471 1097792297 6743581253 47205068771