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12501319438750 = 25410001055551
BaseRepresentation
bin1011010111101011000010…
…1101000101000110011110
31122021010002110001020201211
42311322300231011012132
53114310200234020000
642331005445255034
72430122230643152
oct265726055050636
948233073036654
1012501319438750
113a8a863a0714a
12149aa0a70447a
136c8b3bcc043c
143130d2143062
1516a2c47d37ba
hexb5eb0b4519e

12501319438750 has 20 divisors (see below), whose sum is σ = 23432473158336. Its totient is φ = 5000527775000.

The previous prime is 12501319438633. The next prime is 12501319438757. The reversal of 12501319438750 is 5783491310521.

It is a junction number, because it is equal to n+sod(n) for n = 12501319438694 and 12501319438703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501319438757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5000526526 + ... + 5000529025.

Almost surely, 212501319438750 is an apocalyptic number.

12501319438750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12501319438750 is a deficient number, since it is larger than the sum of its proper divisors (10931153719586).

12501319438750 is an equidigital number, since it uses as much as digits as its factorization.

12501319438750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001055573 (or 10001055558 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 12501319438750 in words is "twelve trillion, five hundred one billion, three hundred nineteen million, four hundred thirty-eight thousand, seven hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 625 1250 10001055551 20002111102 50005277755 100010555510 250026388775 500052777550 1250131943875 2500263887750 6250659719375 12501319438750