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47071765390 = 25131021354643
BaseRepresentation
bin101011110101101100…
…100010001110001110
311111111111211102220011
4223311230202032032
51232400332443030
633342515143434
73254324255416
oct536554421616
9144444742804
1047071765390
1118a6586a051
1291582a4b7a
1345921c4720
1423c7889646
151357779b2a
hexaf5b2238e

47071765390 has 32 divisors (see below), whose sum is σ = 91336434336. Its totient is φ = 17363272320.

The previous prime is 47071765379. The next prime is 47071765397. The reversal of 47071765390 is 9356717074.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47071765397) 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 15 ways as a sum of consecutive naturals, for example, 44592 + ... + 310051.

It is an arithmetic number, because the mean of its divisors is an integer number (2854263573).

Almost surely, 247071765390 is an apocalyptic number.

47071765390 is a deficient number, since it is larger than the sum of its proper divisors (44264668946).

47071765390 is a wasteful number, since it uses less digits than its factorization.

47071765390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355684.

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 47071765390 in words is "forty-seven billion, seventy-one million, seven hundred sixty-five thousand, three hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 1021 2042 5105 10210 13273 26546 66365 132730 354643 709286 1773215 3546430 4610359 9220718 23051795 46103590 362090503 724181006 1810452515 3620905030 4707176539 9414353078 23535882695 47071765390