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115685073 = 3271836271
BaseRepresentation
bin1101110010100…
…11011011010001
322001200102002100
412321103123101
5214103410243
615251311013
72603210160
oct671233321
9261612070
10115685073
115a3349a9
12328ab469
131ac75c0a
14115153d7
15a2520d3
hex6e536d1

115685073 has 12 divisors (see below), whose sum is σ = 190972288. Its totient is φ = 66105720.

The previous prime is 115685069. The next prime is 115685077. The reversal of 115685073 is 370586511.

It is an interprime number because it is at equal distance from previous prime (115685069) and next prime (115685077).

It is not a de Polignac number, because 115685073 - 22 = 115685069 is a prime.

It is a super-2 number, since 2×1156850732 = 26766072230030658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115685077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 918073 + ... + 918198.

Almost surely, 2115685073 is an apocalyptic number.

It is an amenable number.

115685073 is a deficient number, since it is larger than the sum of its proper divisors (75287215).

115685073 is a wasteful number, since it uses less digits than its factorization.

115685073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836284 (or 1836281 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 115685073 is about 10755.6995588386. The cubic root of 115685073 is about 487.2581459111.

It can be divided in two parts, 11568 and 5073, that added together give a square (16641 = 1292).

The spelling of 115685073 in words is "one hundred fifteen million, six hundred eighty-five thousand, seventy-three".

Divisors: 1 3 7 9 21 63 1836271 5508813 12853897 16526439 38561691 115685073