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10123201312 = 25745192863
BaseRepresentation
bin10010110110110001…
…11100101100100000
3222010111120220112221
421123120330230200
5131213014420222
64352303200424
7505601535310
oct113330745440
928114526487
1010123201312
114325312a84
121b662a6114
13c54395563
146c0673440
153e3ae70c7
hex25b63cb20

10123201312 has 24 divisors (see below), whose sum is σ = 22777203456. Its totient is φ = 4338514752.

The previous prime is 10123201289. The next prime is 10123201339. The reversal of 10123201312 is 21310232101.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22596208 + ... + 22596655.

It is an arithmetic number, because the mean of its divisors is an integer number (949050144).

Almost surely, 210123201312 is an apocalyptic number.

It is an amenable number.

10123201312 is an abundant number, since it is smaller than the sum of its proper divisors (12654002144).

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

10123201312 is an equidigital number, since it uses as much as digits as its factorization.

10123201312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45192880 (or 45192872 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10123201312 its reverse (21310232101), we get a palindrome (31433433413).

The spelling of 10123201312 in words is "ten billion, one hundred twenty-three million, two hundred one thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 45192863 90385726 180771452 316350041 361542904 632700082 723085808 1265400164 1446171616 2530800328 5061600656 10123201312