Search a number
-
+
51086262975 = 35211292135267
BaseRepresentation
bin101111100100111110…
…101000001010111111
311212212021211001021220
4233210332220022333
51314111040403400
635245123524423
73455652033126
oct574476501277
9155767731256
1051086262975
111a735955550
129a98829713
134a81b20b97
142688ad4abd
1514dee157a0
hexbe4fa82bf

51086262975 has 48 divisors (see below), whose sum is σ = 95318363520. Its totient is φ = 23914979200.

The previous prime is 51086262967. The next prime is 51086262991. The reversal of 51086262975 is 57926268015.

It is not a de Polignac number, because 51086262975 - 23 = 51086262967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1043709 + ... + 1091558.

It is an arithmetic number, because the mean of its divisors is an integer number (1985799240).

Almost surely, 251086262975 is an apocalyptic number.

51086262975 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51086262975 is a deficient number, since it is larger than the sum of its proper divisors (44232100545).

51086262975 is a wasteful number, since it uses less digits than its factorization.

51086262975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135320 (or 2135315 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 51086262975 in words is "fifty-one billion, eighty-six million, two hundred sixty-two thousand, nine hundred seventy-five".

Divisors: 1 3 5 11 15 25 29 33 55 75 87 145 165 275 319 435 725 825 957 1595 2175 4785 7975 23925 2135267 6405801 10676335 23487937 32029005 53381675 61922743 70463811 117439685 160145025 185768229 309613715 352319055 587198425 681150173 928841145 1548068575 1761595275 2043450519 3405750865 4644205725 10217252595 17028754325 51086262975