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51227160233 = 731549453029
BaseRepresentation
bin101111101101011000…
…000110111010101001
311220020002221100222212
4233231120012322221
51314403123111413
635311115454505
73462312451244
oct575530067251
9156202840885
1051227160233
111a7a843a767
129b17a57435
134aa5083742
14269d6d025b
1514ec497ca8
hexbed606ea9

51227160233 has 8 divisors (see below), whose sum is σ = 51962541000. Its totient is φ = 50492688768.

The previous prime is 51227160217. The next prime is 51227160323. The reversal of 51227160233 is 33206172215.

It can be written as a sum of positive squares in 4 ways, for example, as 22382553664 + 28844606569 = 149608^2 + 169837^2 .

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 51227160233 - 24 = 51227160217 is a prime.

It is a super-2 number, since 2×512271602332 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51227160233.

It is not an unprimeable number, because it can be changed into a prime (51227160533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113438 + ... + 339591.

It is an arithmetic number, because the mean of its divisors is an integer number (6495317625).

Almost surely, 251227160233 is an apocalyptic number.

It is an amenable number.

51227160233 is a deficient number, since it is larger than the sum of its proper divisors (735380767).

51227160233 is a wasteful number, since it uses less digits than its factorization.

51227160233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454651.

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 51227160233 in words is "fifty-one billion, two hundred twenty-seven million, one hundred sixty thousand, two hundred thirty-three".

Divisors: 1 73 1549 113077 453029 33071117 701741921 51227160233