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87490362883 = 71123179275987
BaseRepresentation
bin101000101111011010…
…1001111111000000011
322100211100112221012111
41101132311033320003
52413140013103013
6104105330040151
76215043546160
oct1213665177003
9270740487174
1087490362883
1134117035630
1214b58419057
138333bca4c1
14433d89d067
152420d9a73d
hex145ed4fe03

87490362883 has 32 divisors (see below), whose sum is σ = 114457743360. Its totient is φ = 64845670560.

The previous prime is 87490362863. The next prime is 87490362919. The reversal of 87490362883 is 38826309478.

It is not a de Polignac number, because 87490362883 - 213 = 87490354691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87490362863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179016 + ... + 455002.

It is an arithmetic number, because the mean of its divisors is an integer number (3576804480).

Almost surely, 287490362883 is an apocalyptic number.

87490362883 is a deficient number, since it is larger than the sum of its proper divisors (26967380477).

87490362883 is a wasteful number, since it uses less digits than its factorization.

87490362883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276207.

The product of its (nonzero) digits is 13934592, while the sum is 58.

The spelling of 87490362883 in words is "eighty-seven billion, four hundred ninety million, three hundred sixty-two thousand, eight hundred eighty-three".

Divisors: 1 7 11 23 77 161 179 253 1253 1771 1969 4117 13783 28819 45287 275987 317009 1931909 3035857 6347701 21250999 44433907 49401673 69824711 345811711 488772977 543418403 1136238479 3803928821 7953669353 12498623269 87490362883