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147982627889 = 2812713194113
BaseRepresentation
bin1000100111010001110…
…0111011010000110001
3112010222011102101120222
42021310130323100301
54411032023043024
6151552101142425
713456101403625
oct2116434732061
9463864371528
10147982627889
1157839376678
122481b0baa15
1310c54631b55
14723b893185
153cb193985e
hex227473b431

147982627889 has 8 divisors (see below), whose sum is σ = 148564761672. Its totient is φ = 147400888320.

The previous prime is 147982627883. The next prime is 147982627901. The reversal of 147982627889 is 988726289741.

It can be written as a sum of positive squares in 4 ways, for example, as 56541706225 + 91440921664 = 237785^2 + 302392^2 .

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 147982627889 - 236 = 79263151153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147982627883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665297 + ... + 859409.

It is an arithmetic number, because the mean of its divisors is an integer number (18570595209).

Almost surely, 2147982627889 is an apocalyptic number.

It is an amenable number.

147982627889 is a deficient number, since it is larger than the sum of its proper divisors (582133783).

147982627889 is a wasteful number, since it uses less digits than its factorization.

147982627889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197107.

The product of its digits is 195084288, while the sum is 71.

The spelling of 147982627889 in words is "one hundred forty-seven billion, nine hundred eighty-two million, six hundred twenty-seven thousand, eight hundred eighty-nine".

Divisors: 1 281 2713 194113 762353 54545753 526628569 147982627889