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51926209955 = 585607121313
BaseRepresentation
bin110000010111000010…
…110001010110100011
311222000211022202221022
4300113002301112203
51322321102204310
635504330520055
73515531334134
oct602702612643
9158024282838
1051926209955
1120026aa0104
12a091b9602b
134b86b4c429
14272849bc8b
15153da2da55
hexc170b15a3

51926209955 has 8 divisors (see below), whose sum is σ = 62312693472. Its totient is φ = 41540140288.

The previous prime is 51926209949. The next prime is 51926209957. The reversal of 51926209955 is 55990262915.

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 51926209955 - 26 = 51926209891 is a prime.

It is a super-2 number, since 2×519262099552 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51926209897 and 51926209906.

It is not an unprimeable number, because it can be changed into a prime (51926209957) 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, 367379 + ... + 488691.

It is an arithmetic number, because the mean of its divisors is an integer number (7789086684).

Almost surely, 251926209955 is an apocalyptic number.

51926209955 is a deficient number, since it is larger than the sum of its proper divisors (10386483517).

51926209955 is a wasteful number, since it uses less digits than its factorization.

51926209955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206925.

The product of its (nonzero) digits is 2187000, while the sum is 53.

The spelling of 51926209955 in words is "fifty-one billion, nine hundred twenty-six million, two hundred nine thousand, nine hundred fifty-five".

Divisors: 1 5 85607 121313 428035 606565 10385241991 51926209955