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87397602903 = 32131923166749
BaseRepresentation
bin101000101100101001…
…1011001011001010111
322100120220000020102200
41101121103121121113
52412442241243103
6104052213535543
76212536240002
oct1213123313127
9270526006380
1087397602903
1134079739696
1214b313445b3
13831a920240
144331434539
152417b760a3
hex14594d9657

87397602903 has 72 divisors (see below), whose sum is σ = 148114512000. Its totient is φ = 49308082560.

The previous prime is 87397602883. The next prime is 87397602911. The reversal of 87397602903 is 30920679378.

It is not a de Polignac number, because 87397602903 - 26 = 87397602839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87397602903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87397602983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1275973 + ... + 1342721.

It is an arithmetic number, because the mean of its divisors is an integer number (2057146000).

Almost surely, 287397602903 is an apocalyptic number.

87397602903 is a deficient number, since it is larger than the sum of its proper divisors (60716909097).

87397602903 is a wasteful number, since it uses less digits than its factorization.

87397602903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66837 (or 66815 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 87397602903 in words is "eighty-seven billion, three hundred ninety-seven million, six hundred two thousand, nine hundred three".

Divisors: 1 3 9 13 19 31 39 57 93 117 171 247 279 361 403 589 741 1083 1209 1767 2223 3249 3627 4693 5301 7657 11191 14079 22971 33573 42237 66749 68913 100719 145483 200247 436449 600741 867737 1268231 1309347 2069219 2603211 3804693 6207657 7809633 11414079 16487003 18622971 24096389 26899847 39315161 49461009 72289167 80699541 117945483 148383027 216867501 242098623 313253057 353836449 511097093 746988059 939759171 1533291279 2240964177 2819277513 4599873837 6722892531 9710844767 29132534301 87397602903