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12303236621380 = 225615161831069
BaseRepresentation
bin1011001100001001001000…
…0011000110010001000100
31121120011210201021112101111
42303002102003012101010
53103034012033341010
642100010123134404
72406610446531655
oct263022203062104
947504721245344
1012303236621380
113a13856367701
121468549074404
136b3261c3ca73
143076a091d52c
1516507e81358a
hexb30920c6444

12303236621380 has 12 divisors (see below), whose sum is σ = 25836796904940. Its totient is φ = 4921294648544.

The previous prime is 12303236621353. The next prime is 12303236621383. The reversal of 12303236621380 is 8312663230321.

It can be written as a sum of positive squares in 2 ways, for example, as 9210302383104 + 3092934238276 = 3034848^2 + 1758674^2 .

It is not an unprimeable number, because it can be changed into a prime (12303236621383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307580915515 + ... + 307580915554.

It is an arithmetic number, because the mean of its divisors is an integer number (2153066408745).

Almost surely, 212303236621380 is an apocalyptic number.

12303236621380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12303236621380 is an abundant number, since it is smaller than the sum of its proper divisors (13533560283560).

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

12303236621380 is a wasteful number, since it uses less digits than its factorization.

12303236621380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615161831078 (or 615161831076 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 12303236621380 in words is "twelve trillion, three hundred three billion, two hundred thirty-six million, six hundred twenty-one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 615161831069 1230323662138 2460647324276 3075809155345 6151618310690 12303236621380