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52978127870 = 25471139771021
BaseRepresentation
bin110001010101101111…
…100001001111111110
312001202010200202001002
4301111233201033332
51331444400042440
640200545050302
73553563441203
oct612557411776
9161663622032
1052978127870
1120516854658
12a326326992
134cc3a66975
1427c8081caa
1515a1068115
hexc55be13fe

52978127870 has 64 divisors (see below), whose sum is σ = 98448327936. Its totient is φ = 20515676160.

The previous prime is 52978127857. The next prime is 52978127897. The reversal of 52978127870 is 7872187925.

It is a super-2 number, since 2×529781278702 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51887960 + ... + 51888980.

It is an arithmetic number, because the mean of its divisors is an integer number (1538255124).

Almost surely, 252978127870 is an apocalyptic number.

52978127870 is a deficient number, since it is larger than the sum of its proper divisors (45470200066).

52978127870 is a wasteful number, since it uses less digits than its factorization.

52978127870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165.

The product of its (nonzero) digits is 3951360, while the sum is 56.

The spelling of 52978127870 in words is "fifty-two billion, nine hundred seventy-eight million, one hundred twenty-seven thousand, eight hundred seventy".

Divisors: 1 2 5 10 47 94 113 226 235 470 565 977 1021 1130 1954 2042 4885 5105 5311 9770 10210 10622 26555 45919 47987 53110 91838 95974 110401 115373 220802 229595 230746 239935 459190 479870 552005 576865 997517 1104010 1153730 1995034 4987585 5188847 5422531 9975170 10377694 10845062 25944235 27112655 46883299 51888470 54225310 93766598 112719421 225438842 234416495 468832990 563597105 1127194210 5297812787 10595625574 26489063935 52978127870