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12088088369 = 72246695681
BaseRepresentation
bin10110100001000000…
…11001011100110001
31011012102212111212122
423100200121130301
5144224022311434
65315253404025
7605361025100
oct132040313461
934172774778
1012088088369
115143457785
122414339615
1311a8497616
148295cc037
154ab370c2e
hex2d0819731

12088088369 has 6 divisors (see below), whose sum is σ = 14061653874. Its totient is φ = 10361218560.

The previous prime is 12088088321. The next prime is 12088088381. The reversal of 12088088369 is 96388088021.

It can be written as a sum of positive squares in only one way, i.e., 10444840000 + 1643248369 = 102200^2 + 40537^2 .

It is a de Polignac number, because none of the positive numbers 2k-12088088369 is a prime.

It is a super-2 number, since 2×120880883692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12088088369.

It is not an unprimeable number, because it can be changed into a prime (12088088069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123347792 + ... + 123347889.

It is an arithmetic number, because the mean of its divisors is an integer number (2343608979).

Almost surely, 212088088369 is an apocalyptic number.

It is an amenable number.

12088088369 is a deficient number, since it is larger than the sum of its proper divisors (1973565505).

12088088369 is an equidigital number, since it uses as much as digits as its factorization.

12088088369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246695695 (or 246695688 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 53.

The spelling of 12088088369 in words is "twelve billion, eighty-eight million, eighty-eight thousand, three hundred sixty-nine".

Divisors: 1 7 49 246695681 1726869767 12088088369