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80975669030144 = 2871719791770871
BaseRepresentation
bin10010011010010110011101…
…111111001110110100000000
3101121201012100121021010010022
4102122112131333032310000
541103201132232431034
6444115413033553012
723025204365051240
oct2232263577166400
9347635317233108
1080975669030144
112388a652155289
1290b9763875768
133624c853ac375
1415dd359849b20
1595656a0d3b2e
hex49a59dfced00

80975669030144 has 288 divisors, whose sum is σ = 208492552396800. Its totient is φ = 30551672586240.

The previous prime is 80975669030051. The next prime is 80975669030153. The reversal of 80975669030144 is 44103096657908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44841029 + ... + 46611899.

It is an arithmetic number, because the mean of its divisors is an integer number (723932473600).

Almost surely, 280975669030144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80975669030144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104246276198400).

80975669030144 is an abundant number, since it is smaller than the sum of its proper divisors (127516883366656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80975669030144 is a wasteful number, since it uses less digits than its factorization.

80975669030144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771009 (or 1770995 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 80975669030144 in words is "eighty trillion, nine hundred seventy-five billion, six hundred sixty-nine million, thirty thousand, one hundred forty-four".