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12323200442 = 27990188903
BaseRepresentation
bin10110111101000010…
…10001110110111010
31011210211021110000012
423132201101312322
5200214214403232
65354452541522
7614244322040
oct133641216672
934724243005
1012323200442
115254141983
12247b0218a2
1312150c66a7
1484c910390
154c1d139b2
hex2de851dba

12323200442 has 16 divisors (see below), whose sum is σ = 21127857792. Its totient is φ = 5280778800.

The previous prime is 12323200433. The next prime is 12323200457. The reversal of 12323200442 is 24400232321.

It is a super-2 number, since 2×123232004422 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94163 + ... + 183065.

It is an arithmetic number, because the mean of its divisors is an integer number (1320491112).

Almost surely, 212323200442 is an apocalyptic number.

12323200442 is a deficient number, since it is larger than the sum of its proper divisors (8804657350).

12323200442 is an equidigital number, since it uses as much as digits as its factorization.

12323200442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98813.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 12323200442 its reverse (24400232321), we get a palindrome (36723432763).

The spelling of 12323200442 in words is "twelve billion, three hundred twenty-three million, two hundred thousand, four hundred forty-two".

Divisors: 1 2 7 14 9901 19802 69307 88903 138614 177806 622321 1244642 880228603 1760457206 6161600221 12323200442