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12315532333 = 13947348641
BaseRepresentation
bin10110111100001000…
…00001110000101101
31011210021211212100011
423132010001300231
5200210234013313
65354020333221
7614122204036
oct133604016055
934707755304
1012315532333
11524a8847a5
122478544211
131213640350
1484b8b5a8d
154c12eb93d
hex2de101c2d

12315532333 has 4 divisors (see below), whose sum is σ = 13262880988. Its totient is φ = 11368183680.

The previous prime is 12315532279. The next prime is 12315532363. The reversal of 12315532333 is 33323551321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33323551321 = 317105121613.

It can be written as a sum of positive squares in 2 ways, for example, as 2636514409 + 9679017924 = 51347^2 + 98382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12315532333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12315532295 and 12315532304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315532363) 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, 473674308 + ... + 473674333.

It is an arithmetic number, because the mean of its divisors is an integer number (3315720247).

Almost surely, 212315532333 is an apocalyptic number.

12315532333 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12315532333 is a deficient number, since it is larger than the sum of its proper divisors (947348655).

12315532333 is an equidigital number, since it uses as much as digits as its factorization.

12315532333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947348654.

The product of its digits is 24300, while the sum is 31.

The spelling of 12315532333 in words is "twelve billion, three hundred fifteen million, five hundred thirty-two thousand, three hundred thirty-three".

Divisors: 1 13 947348641 12315532333