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118160897 = 176950641
BaseRepresentation
bin1110000101011…
…11111000000001
322020100012021112
413002233320001
5220222122042
615420333105
72633231261
oct702577001
9266305245
10118160897
1160776038
12336a4195
131b631aba
141199b7a1
15a590982
hex70afe01

118160897 has 4 divisors (see below), whose sum is σ = 125111556. Its totient is φ = 111210240.

The previous prime is 118160891. The next prime is 118160899. The reversal of 118160897 is 798061811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798061811 = 4318559577.

It can be written as a sum of positive squares in 2 ways, for example, as 84474481 + 33686416 = 9191^2 + 5804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-118160897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118160891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3475304 + ... + 3475337.

It is an arithmetic number, because the mean of its divisors is an integer number (31277889).

Almost surely, 2118160897 is an apocalyptic number.

118160897 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

118160897 is a deficient number, since it is larger than the sum of its proper divisors (6950659).

118160897 is an equidigital number, since it uses as much as digits as its factorization.

118160897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6950658.

The product of its (nonzero) digits is 24192, while the sum is 41.

The square root of 118160897 is about 10870.1838530910. The cubic root of 118160897 is about 490.7096437029.

It can be divided in two parts, 118160 and 897, that multiplied together give a triangular number (105989520 = T14559).

The spelling of 118160897 in words is "one hundred eighteen million, one hundred sixty thousand, eight hundred ninety-seven".

Divisors: 1 17 6950641 118160897