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80070109992 = 23324127124021
BaseRepresentation
bin100101010010010001…
…1001110101100101000
321122200020001000211100
41022210203032230220
52302440422004432
6100441140201400
75533132463625
oct1124443165450
9248606030740
1080070109992
1130a59542824
1213627399260
137720811712
143c381c934c
15213971c07c
hex12a48ceb28

80070109992 has 48 divisors (see below), whose sum is σ = 222145740180. Its totient is φ = 26039059200.

The previous prime is 80070109991. The next prime is 80070110011. The reversal of 80070109992 is 29990107008.

It can be written as a sum of positive squares in 2 ways, for example, as 80069757156 + 352836 = 282966^2 + 594^2 .

It is a super-2 number, since 2×800701099922 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80070109991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13559059 + ... + 13564962.

Almost surely, 280070109992 is an apocalyptic number.

80070109992 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

80070109992 is an abundant number, since it is smaller than the sum of its proper divisors (142075630188).

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

80070109992 is a wasteful number, since it uses less digits than its factorization.

80070109992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27124074 (or 27124067 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The spelling of 80070109992 in words is "eighty billion, seventy million, one hundred nine thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 41 72 82 123 164 246 328 369 492 738 984 1476 2952 27124021 54248042 81372063 108496084 162744126 216992168 244116189 325488252 488232378 650976504 976464756 1112084861 1952929512 2224169722 3336254583 4448339444 6672509166 8896678888 10008763749 13345018332 20017527498 26690036664 40035054996 80070109992