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12303315052 = 2271915722937
BaseRepresentation
bin10110111010101010…
…11011000001101100
31011202102212011101021
423131111123001230
5200144122040202
65352502423524
7613613311120
oct133525330154
934672764337
1012303315052
11524399a776
122474431ba4
131210c534a2
1484a015580
154c01d6a37
hex2dd55b06c

12303315052 has 24 divisors (see below), whose sum is σ = 24608987424. Its totient is φ = 5272344192.

The previous prime is 12303315041. The next prime is 12303315077. The reversal of 12303315052 is 25051330321.

It is a super-2 number, since 2×123033150522 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524928 + ... + 547864.

It is an arithmetic number, because the mean of its divisors is an integer number (1025374476).

Almost surely, 212303315052 is an apocalyptic number.

It is an amenable number.

12303315052 is an abundant number, since it is smaller than the sum of its proper divisors (12305672372).

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

12303315052 is a wasteful number, since it uses less digits than its factorization.

12303315052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42105 (or 42103 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 12303315052 its reverse (25051330321), we get a palindrome (37354645373).

The spelling of 12303315052 in words is "twelve billion, three hundred three million, three hundred fifteen thousand, fifty-two".

Divisors: 1 2 4 7 14 28 19157 22937 38314 45874 76628 91748 134099 160559 268198 321118 536396 642236 439404109 878808218 1757616436 3075828763 6151657526 12303315052