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118143085 = 552345179
BaseRepresentation
bin1110000101010…
…11100001101101
322020022021211211
413002223201231
5220221034320
615420114421
72633125324
oct702534155
9266267754
10118143085
1160763715
1233695a11
131b626968
14119950bb
15a58a55a
hex70ab86d

118143085 has 8 divisors (see below), whose sum is σ = 142045920. Its totient is φ = 94331664.

The previous prime is 118143079. The next prime is 118143089. The reversal of 118143085 is 580341811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118143085 - 29 = 118142573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118143089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19975 + ... + 25204.

It is an arithmetic number, because the mean of its divisors is an integer number (17755740).

Almost surely, 2118143085 is an apocalyptic number.

It is an amenable number.

118143085 is a deficient number, since it is larger than the sum of its proper divisors (23902835).

118143085 is an equidigital number, since it uses as much as digits as its factorization.

118143085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45707.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 118143085 is about 10869.3645168427. The cubic root of 118143085 is about 490.6849853497.

Adding to 118143085 its reverse (580341811), we get a palindrome (698484896).

The spelling of 118143085 in words is "one hundred eighteen million, one hundred forty-three thousand, eighty-five".

Divisors: 1 5 523 2615 45179 225895 23628617 118143085