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82480919947 = 314361876159
BaseRepresentation
bin100110011010000111…
…1101111010110001011
321212220020101212100221
41030310033233112023
52322410103414242
6101520300210511
75646645152236
oct1146417572613
9255806355327
1082480919947
1131a86368a48
1213b9a839a37
137a1611379a
143dc646041d
15222b1cb167
hex13343ef58b

82480919947 has 8 divisors (see below), whose sum is σ = 87121633280. Its totient is φ = 77963959080.

The previous prime is 82480919869. The next prime is 82480919953. The reversal of 82480919947 is 74991908428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82480919947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82480919987) 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, 30936747 + ... + 30939412.

It is an arithmetic number, because the mean of its divisors is an integer number (10890204160).

Almost surely, 282480919947 is an apocalyptic number.

82480919947 is a deficient number, since it is larger than the sum of its proper divisors (4640713333).

82480919947 is a wasteful number, since it uses less digits than its factorization.

82480919947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61876233.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 82480919947 in words is "eighty-two billion, four hundred eighty million, nine hundred nineteen thousand, nine hundred forty-seven".

Divisors: 1 31 43 1333 61876159 1918160929 2660674837 82480919947