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80272328680445 = 51121726772915501
BaseRepresentation
bin10010010000000111011011…
…101000101110001111111101
3101112012221220121022101000212
4102100013123220232033331
541010140212120233240
6442420333153202205
722623325064526656
oct2220073350561775
9345187817271025
1080272328680445
1123639337932500
129005394560365
1335a3856ba3355
1415b72b6a6452d
15943102b58165
hex4901dba2e3fd

80272328680445 has 48 divisors (see below), whose sum is σ = 112150009009584. Its totient is φ = 54925221120000.

The previous prime is 80272328680433. The next prime is 80272328680553. The reversal of 80272328680445 is 54408682327208.

It can be written as a sum of positive squares in 8 ways, for example, as 165568423801 + 80106760256644 = 406901^2 + 8950238^2 .

It is not a de Polignac number, because 80272328680445 - 230 = 80271254938621 is a prime.

It is a super-3 number, since 3×802723286804453 (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26075195 + ... + 28990695.

It is an arithmetic number, because the mean of its divisors is an integer number (2336458521033).

Almost surely, 280272328680445 is an apocalyptic number.

80272328680445 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

80272328680445 is a deficient number, since it is larger than the sum of its proper divisors (31877680329139).

80272328680445 is a wasteful number, since it uses less digits than its factorization.

80272328680445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918222 (or 2918211 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 59.

The spelling of 80272328680445 in words is "eighty trillion, two hundred seventy-two billion, three hundred twenty-eight million, six hundred eighty thousand, four hundred forty-five".

Divisors: 1 5 11 17 55 85 121 187 605 935 2057 2677 10285 13385 29447 45509 147235 227545 323917 500599 1619585 2502995 2915501 5506589 14577505 27532945 32070511 49563517 160352555 247817585 352775621 545198687 1763878105 2725993435 5997185557 7804796177 29985927785 39023980885 85852757947 132681535009 429263789735 663407675045 944380337417 1459496885099 4721901687085 7297484425495 16054465736089 80272328680445