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12890040275 = 527610112073
BaseRepresentation
bin11000000000100111…
…00110011111010011
31020021022212220002002
430000103212133103
5202344322242100
65531022144215
7634266351230
oct140023463723
936238786062
1012890040275
115515101052
1225b8a2206b
1312a5681a88
148a3d04787
155069812d5
hex3004e67d3

12890040275 has 24 divisors (see below), whose sum is σ = 18271535904. Its totient is φ = 8836704000.

The previous prime is 12890040269. The next prime is 12890040299. The reversal of 12890040275 is 57204009821.

It is not a de Polignac number, because 12890040275 - 216 = 12889974739 is a prime.

It is a super-2 number, since 2×128900402752 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1061639 + ... + 1073711.

It is an arithmetic number, because the mean of its divisors is an integer number (761313996).

Almost surely, 212890040275 is an apocalyptic number.

12890040275 is a deficient number, since it is larger than the sum of its proper divisors (5381495629).

12890040275 is a wasteful number, since it uses less digits than its factorization.

12890040275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18191 (or 18186 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 12890040275 in words is "twelve billion, eight hundred ninety million, forty thousand, two hundred seventy-five".

Divisors: 1 5 7 25 35 175 6101 12073 30505 42707 60365 84511 152525 213535 301825 422555 1067675 2112775 73657373 368286865 515601611 1841434325 2578008055 12890040275