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51115304001 = 328219603793
BaseRepresentation
bin101111100110101101…
…011010010001000001
311212221022110111002110
4233212231122101001
51314141004212001
635252042205533
73456453625626
oct574655322101
9155838414073
1051115304001
111a7502904a3
129aa64b38a9
134a87b4b518
14268c8d434d
1514e27503d6
hexbe6b5a441

51115304001 has 8 divisors (see below), whose sum is σ = 68156266720. Its totient is φ = 34075605312.

The previous prime is 51115303969. The next prime is 51115304003. The reversal of 51115304001 is 10040351115.

It is a happy number.

51115304001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51115304001 - 25 = 51115303969 is a prime.

It is a super-2 number, since 2×511153040012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51115304003) 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, 217240 + ... + 386553.

It is an arithmetic number, because the mean of its divisors is an integer number (8519533340).

Almost surely, 251115304001 is an apocalyptic number.

It is an amenable number.

51115304001 is a deficient number, since it is larger than the sum of its proper divisors (17040962719).

51115304001 is a wasteful number, since it uses less digits than its factorization.

51115304001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632015.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 51115304001 its reverse (10040351115), we get a palindrome (61155655116).

The spelling of 51115304001 in words is "fifty-one billion, one hundred fifteen million, three hundred four thousand, one".

Divisors: 1 3 28219 84657 603793 1811379 17038434667 51115304001