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51110617001 = 298572056517
BaseRepresentation
bin101111100110011011…
…100001111110101001
311212220222122100201212
4233212123201332221
51314133304221001
635251353522505
73456366035123
oct574633417651
9155828570655
1051110617001
111a74867a044
129aa4a13435
134a86b9a052
14268c034213
1514e21267bb
hexbe66e1fa9

51110617001 has 8 divisors (see below), whose sum is σ = 52934773320. Its totient is φ = 49290575488.

The previous prime is 51110616979. The next prime is 51110617007. The reversal of 51110617001 is 10071601115.

It can be written as a sum of positive squares in 4 ways, for example, as 30651605776 + 20459011225 = 175076^2 + 143035^2 .

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 51110617001 - 210 = 51110615977 is a prime.

It is a super-2 number, since 2×511106170012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51110617007) 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, 1003406 + ... + 1053111.

It is an arithmetic number, because the mean of its divisors is an integer number (6616846665).

Almost surely, 251110617001 is an apocalyptic number.

It is an amenable number.

51110617001 is a deficient number, since it is larger than the sum of its proper divisors (1824156319).

51110617001 is a wasteful number, since it uses less digits than its factorization.

51110617001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057403.

The product of its (nonzero) digits is 210, while the sum is 23.

The spelling of 51110617001 in words is "fifty-one billion, one hundred ten million, six hundred seventeen thousand, one".

Divisors: 1 29 857 24853 2056517 59638993 1762435069 51110617001