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51086262156 = 22337472448067
BaseRepresentation
bin101111100100111110…
…100111111110001100
311212212021211000011120
4233210332213332030
51314111040342111
635245123520540
73455652030546
oct574476477614
9155767730146
1051086262156
111a735954976
129a98829150
134a81b206b7
142688ad4696
1514dee15406
hexbe4fa7f8c

51086262156 has 48 divisors (see below), whose sum is σ = 125027728896. Its totient is φ = 16215989184.

The previous prime is 51086262137. The next prime is 51086262169. The reversal of 51086262156 is 65126268015.

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 15 ways as a sum of consecutive naturals, for example, 1203166 + ... + 1244901.

It is an arithmetic number, because the mean of its divisors is an integer number (2604744352).

Almost surely, 251086262156 is an apocalyptic number.

It is an amenable number.

51086262156 is an abundant number, since it is smaller than the sum of its proper divisors (73941466740).

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

51086262156 is a wasteful number, since it uses less digits than its factorization.

51086262156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448158 (or 2448156 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 51086262156 in words is "fifty-one billion, eighty-six million, two hundred sixty-two thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 12 37 47 74 94 111 141 148 188 222 282 444 564 1739 3478 5217 6956 10434 20868 2448067 4896134 7344201 9792268 14688402 29376804 90578479 115059149 181156958 230118298 271735437 345177447 362313916 460236596 543470874 690354894 1086941748 1380709788 4257188513 8514377026 12771565539 17028754052 25543131078 51086262156