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80831520768963 = 34718311034330271
BaseRepresentation
bin10010011000010000001110…
…000101010000001111000011
3101121012102021122212201211010
4102120100032011100033003
541043320423304101323
6443525253224252003
723011612303050066
oct2230201605201703
9347172248781733
1080831520768963
1123834501223118
129095834911003
1336144c2288373
1415d63a33128dd
15952930102c93
hex49840e1503c3

80831520768963 has 32 divisors (see below), whose sum is σ = 110142853742592. Its totient is φ = 52705491962400.

The previous prime is 80831520768853. The next prime is 80831520769019. The reversal of 80831520768963 is 36986702513808.

It is not a de Polignac number, because 80831520768963 - 221 = 80831518671811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80831520768894 and 80831520768903.

It is not an unprimeable number, because it can be changed into a prime (80831520766963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2670247518 + ... + 2670277788.

It is an arithmetic number, because the mean of its divisors is an integer number (3441964179456).

Almost surely, 280831520768963 is an apocalyptic number.

80831520768963 is a deficient number, since it is larger than the sum of its proper divisors (29311332973629).

80831520768963 is a wasteful number, since it uses less digits than its factorization.

80831520768963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42495.

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 80831520768963 in words is "eighty trillion, eight hundred thirty-one billion, five hundred twenty million, seven hundred sixty-eight thousand, nine hundred sixty-three".

Divisors: 1 3 47 141 1831 5493 10343 30271 31029 86057 90813 258171 486121 1422737 1458363 4268211 18938033 55426201 56814099 166278603 313092953 890087551 939278859 2605031447 2670262653 7815094341 14715368791 44146106373 573273196943 1719819590829 26943840256321 80831520768963