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87464999999 = 13611011092043
BaseRepresentation
bin101000101110101010…
…0011111110000111111
322100202120211100212102
41101131110133300333
52413112014444444
6104103022255315
76214315142666
oct1213524376077
9270676740772
1087464999999
1134103792073
1214b4ba2753b
13832b88a090
14433a379ddd
15241da3a84e
hex145d51fc3f

87464999999 has 16 divisors (see below), whose sum is σ = 96685207584. Its totient is φ = 78627024000.

The previous prime is 87464999959. The next prime is 87465000079. The reversal of 87464999999 is 99999946478.

It is a cyclic number.

It is not a de Polignac number, because 87464999999 - 224 = 87448222783 is a prime.

It is a Duffinian number.

87464999999 is a modest number, since divided by 999999 gives 87464 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87464999959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465929 + ... + 626114.

It is an arithmetic number, because the mean of its divisors is an integer number (6042825474).

Almost surely, 287464999999 is an apocalyptic number.

87464999999 is a deficient number, since it is larger than the sum of its proper divisors (9220207585).

87464999999 is a wasteful number, since it uses less digits than its factorization.

87464999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092218.

The product of its digits is 2857026816, while the sum is 83.

The spelling of 87464999999 in words is "eighty-seven billion, four hundred sixty-four million, nine hundred ninety-nine thousand, nine hundred ninety-nine".

Divisors: 1 13 61 101 793 1313 6161 80093 1092043 14196559 66614623 110296343 865990099 1433852459 6728076923 87464999999