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471985328643 = 3883191393139
BaseRepresentation
bin1101101111001001000…
…01001001001000000011
31200010021110122221202220
412313210201021020003
530213111221004033
61000454351342123
746046144045553
oct6674441111003
91603243587686
10471985328643
11172193460244
1277582b21943
133567b19416a
1418bb6735163
15c42646ebb3
hex6de4849203

471985328643 has 16 divisors (see below), whose sum is σ = 630362578560. Its totient is φ = 314132865984.

The previous prime is 471985328623. The next prime is 471985328663. The reversal of 471985328643 is 346823589174.

It is an interprime number because it is at equal distance from previous prime (471985328623) and next prime (471985328663).

It is not a de Polignac number, because 471985328643 - 216 = 471985263107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (471985328623) 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, 5020968 + ... + 5114106.

It is an arithmetic number, because the mean of its divisors is an integer number (39397661160).

Almost surely, 2471985328643 is an apocalyptic number.

471985328643 is a deficient number, since it is larger than the sum of its proper divisors (158377249917).

471985328643 is a wasteful number, since it uses less digits than its factorization.

471985328643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95938.

The product of its digits is 34836480, while the sum is 60.

The spelling of 471985328643 in words is "four hundred seventy-one billion, nine hundred eighty-five million, three hundred twenty-eight thousand, six hundred forty-three".

Divisors: 1 3 883 1913 2649 5739 93139 279417 1689179 5067537 82241737 178174907 246725211 534524721 157328442881 471985328643