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51033244231 = 174445367531
BaseRepresentation
bin101111100001110100…
…011000001001000111
311212201121001102020201
4233201310120021013
51314004002303411
635235551311331
73454436263414
oct574164301107
9155647042221
1051033244231
111a708a32802
129a82b1b547
134a73b49748
142681a5310b
1514da4413c1
hexbe1d18247

51033244231 has 8 divisors (see below), whose sum is σ = 54037215504. Its totient is φ = 48029496960.

The previous prime is 51033244211. The next prime is 51033244291. The reversal of 51033244231 is 13244233015.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51033244231 - 213 = 51033236039 is a prime.

It is a super-2 number, since 2×510332442312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51033244231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51033244211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721936 + ... + 789466.

It is an arithmetic number, because the mean of its divisors is an integer number (6754651938).

Almost surely, 251033244231 is an apocalyptic number.

51033244231 is a deficient number, since it is larger than the sum of its proper divisors (3003971273).

51033244231 is a wasteful number, since it uses less digits than its factorization.

51033244231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112001.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 51033244231 its reverse (13244233015), we get a palindrome (64277477246).

The spelling of 51033244231 in words is "fifty-one billion, thirty-three million, two hundred forty-four thousand, two hundred thirty-one".

Divisors: 1 17 44453 67531 755701 1148027 3001955543 51033244231