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51799351164 = 22311392419327
BaseRepresentation
bin110000001111011110…
…110101111101111100
311221200222121200101120
4300033132311331330
51322041113214124
635443555510540
73512431135341
oct601736657574
9157628550346
1051799351164
111aa71424230
12a0575b8450
134b66793662
1427156b87c8
151532820d79
hexc0f7b5f7c

51799351164 has 24 divisors (see below), whose sum is σ = 131852894208. Its totient is φ = 15696773040.

The previous prime is 51799351159. The next prime is 51799351171. The reversal of 51799351164 is 46115399715.

It is a super-2 number, since 2×517993511642 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196209532 + ... + 196209795.

It is an arithmetic number, because the mean of its divisors is an integer number (5493870592).

Almost surely, 251799351164 is an apocalyptic number.

It is an amenable number.

51799351164 is an abundant number, since it is smaller than the sum of its proper divisors (80053543044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51799351164 is a wasteful number, since it uses less digits than its factorization.

51799351164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392419345 (or 392419343 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 51.

The spelling of 51799351164 in words is "fifty-one billion, seven hundred ninety-nine million, three hundred fifty-one thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 392419327 784838654 1177257981 1569677308 2354515962 4316612597 4709031924 8633225194 12949837791 17266450388 25899675582 51799351164