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115489693 = 1123289223
BaseRepresentation
bin1101110001000…
…11101110011101
322001022111002001
412320203232131
5214031132233
615243202301
72601434434
oct670435635
9261274061
10115489693
115a211130
1232816391
131ac07cc7
14114a411b
15a21427d
hex6e23b9d

115489693 has 24 divisors (see below), whose sum is σ = 133781760. Its totient is φ = 98852160.

The previous prime is 115489667. The next prime is 115489741. The reversal of 115489693 is 396984511.

It is a de Polignac number, because none of the positive numbers 2k-115489693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115489613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 517780 + ... + 518002.

It is an arithmetic number, because the mean of its divisors is an integer number (5574240).

Almost surely, 2115489693 is an apocalyptic number.

It is an amenable number.

115489693 is a deficient number, since it is larger than the sum of its proper divisors (18292067).

115489693 is a wasteful number, since it uses less digits than its factorization.

115489693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 346 counting only the distinct ones).

The product of its digits is 233280, while the sum is 46.

The square root of 115489693 is about 10746.6130943661. The cubic root of 115489693 is about 486.9836819750.

The spelling of 115489693 in words is "one hundred fifteen million, four hundred eighty-nine thousand, six hundred ninety-three".

Divisors: 1 11 23 89 223 253 529 979 2047 2453 5129 5819 19847 22517 47081 56419 117967 218317 456481 517891 1297637 5021291 10499063 115489693