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80528003028 = 2232111271601209
BaseRepresentation
bin100101011111111010…
…1111100111111010100
321200212010122101222200
41022333311330333110
52304410132044103
6100554414324500
75550362506014
oct1127765747724
9250763571880
1080528003028
1131173a5a620
12137347b9730
137794642c45
143c7cd3dc44
152164a190a3
hex12bfd7cfd4

80528003028 has 72 divisors (see below), whose sum is σ = 223810728960. Its totient is φ = 24210264960.

The previous prime is 80528003021. The next prime is 80528003053. The reversal of 80528003028 is 82030082508.

80528003028 is a `hidden beast` number, since 80 + 528 + 0 + 0 + 30 + 28 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 80528002983 and 80528003001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80528003021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 750313 + ... + 850896.

Almost surely, 280528003028 is an apocalyptic number.

It is an amenable number.

80528003028 is an abundant number, since it is smaller than the sum of its proper divisors (143282725932).

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

80528003028 is a wasteful number, since it uses less digits than its factorization.

80528003028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601357 (or 1601352 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 80528003028 in words is "eighty billion, five hundred twenty-eight million, three thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 127 132 198 254 381 396 508 762 1143 1397 1524 2286 2794 4191 4572 5588 8382 12573 16764 25146 50292 1601209 3202418 4803627 6404836 9607254 14410881 17613299 19214508 28821762 35226598 52839897 57643524 70453196 105679794 158519691 203353543 211359588 317039382 406707086 610060629 634078764 813414172 1220121258 1830181887 2236888973 2440242516 3660363774 4473777946 6710666919 7320727548 8947555892 13421333838 20132000757 26842667676 40264001514 80528003028