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12500898696500 = 225387877284509
BaseRepresentation
bin1011010111101001011110…
…1000000100110100110100
31122021002000010100022212112
42311322113220010310310
53114303320031242000
642330500015310152
72430105631461314
oct265722750046464
948232003308775
1012500898696500
113a8a668464285
12149a91181b358
136c8aa2a98926
143130922dd444
1516a29c8c4235
hexb5e97a04d34

12500898696500 has 48 divisors (see below), whose sum is σ = 27302369399760. Its totient is φ = 5000285001600.

The previous prime is 12500898696469. The next prime is 12500898696529. The reversal of 12500898696500 is 569689800521.

12500898696500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2603846958736 + 9897051737764 = 1613644^2 + 3145958^2 .

It is a super-2 number, since 2×125008986965002 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12500898696500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43796246 + ... + 44080754.

It is an arithmetic number, because the mean of its divisors is an integer number (568799362495).

Almost surely, 212500898696500 is an apocalyptic number.

12500898696500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12500898696500 is an abundant number, since it is smaller than the sum of its proper divisors (14801470703260).

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

12500898696500 is a wasteful number, since it uses less digits than its factorization.

12500898696500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372405 (or 372393 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 59.

The spelling of 12500898696500 in words is "twelve trillion, five hundred billion, eight hundred ninety-eight million, six hundred ninety-six thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 87877 175754 284509 351508 439385 569018 878770 1138036 1422545 1757540 2196925 2845090 4393850 5690180 7112725 8787700 10984625 14225450 21969250 28450900 35563625 43938500 71127250 142254500 25001797393 50003594786 100007189572 125008986965 250017973930 500035947860 625044934825 1250089869650 2500179739300 3125224674125 6250449348250 12500898696500