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12500250289145 = 519314244567161
BaseRepresentation
bin1011010111100111000011…
…1110100110001111111001
31122021000022221020211012022
42311321300332212033321
53114301003033223040
642330311413524225
72430053566220003
oct265716076461771
948230287224168
1012500250289145
113a8a365453233
12149a770643675
136c89cb651838
14313030155373
1516a2609e36b5
hexb5e70fa63f9

12500250289145 has 16 divisors (see below), whose sum is σ = 16299137902080. Its totient is φ = 9168265065600.

The previous prime is 12500250289139. The next prime is 12500250289157. The reversal of 12500250289145 is 54198205200521.

It is not a de Polignac number, because 12500250289145 - 26 = 12500250289081 is a prime.

It is a super-2 number, since 2×125002502891452 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12500250289096 and 12500250289105.

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, 2122280636 + ... + 2122286525.

It is an arithmetic number, because the mean of its divisors is an integer number (1018696118880).

Almost surely, 212500250289145 is an apocalyptic number.

It is an amenable number.

12500250289145 is a deficient number, since it is larger than the sum of its proper divisors (3798887612935).

12500250289145 is a wasteful number, since it uses less digits than its factorization.

12500250289145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244567216.

The product of its (nonzero) digits is 288000, while the sum is 44.

Adding to 12500250289145 its reverse (54198205200521), we get a palindrome (66698455489666).

The spelling of 12500250289145 in words is "twelve trillion, five hundred billion, two hundred fifty million, two hundred eighty-nine thousand, one hundred forty-five".

Divisors: 1 5 19 31 95 155 589 2945 4244567161 21222835805 80646776059 131581581991 403233880295 657907909955 2500050057829 12500250289145