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51025050280277 = 67212789501459
BaseRepresentation
bin10111001101000001100011…
…11111110010000101010101
320200122221120111002210000022
423212200301333302011111
523141443300332432102
6300304330130154525
713514303212144223
oct1346406177620525
9220587514083008
1051025050280277
1115292669732357
125880bb6122a45
13226184577ab68
14c858a8965b13
155d742a6cb5a2
hex2e6831ff2155

51025050280277 has 12 divisors (see below), whose sum is σ = 52205843612160. Its totient is φ = 49867706356776.

The previous prime is 51025050280247. The next prime is 51025050280289. The reversal of 51025050280277 is 77208205052015.

It is not a de Polignac number, because 51025050280277 - 28 = 51025050280021 is a prime.

It is a super-2 number, since 2×510250502802772 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025050280207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44180627 + ... + 45320832.

It is an arithmetic number, because the mean of its divisors is an integer number (4350486967680).

Almost surely, 251025050280277 is an apocalyptic number.

It is an amenable number.

51025050280277 is a deficient number, since it is larger than the sum of its proper divisors (1180793331883).

51025050280277 is an equidigital number, since it uses as much as digits as its factorization.

51025050280277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89501720 (or 89501653 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 44.

The spelling of 51025050280277 in words is "fifty-one trillion, twenty-five billion, fifty million, two hundred eighty thousand, two hundred seventy-seven".

Divisors: 1 67 127 4489 8509 570103 89501459 5996597753 11366685293 401772049451 761567914631 51025050280277