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118233385 = 5178915629
BaseRepresentation
bin1110000110000…
…01100100101001
322020110212201021
413003001210221
5220231432020
615422052441
72633652514
oct703014451
9266425637
10118233385
1160815546
123371a121
131b658aaa
14119b9d7b
15a5a71aa
hex70c1929

118233385 has 16 divisors (see below), whose sum is σ = 151923600. Its totient is φ = 88016896.

The previous prime is 118233383. The next prime is 118233413. The reversal of 118233385 is 583332811.

It can be written as a sum of positive squares in 8 ways, for example, as 9511056 + 108722329 = 3084^2 + 10427^2 .

It is a cyclic number.

It is not a de Polignac number, because 118233385 - 21 = 118233383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118233385.

It is not an unprimeable number, because it can be changed into a prime (118233383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250 + ... + 15379.

It is an arithmetic number, because the mean of its divisors is an integer number (9495225).

Almost surely, 2118233385 is an apocalyptic number.

It is an amenable number.

118233385 is a deficient number, since it is larger than the sum of its proper divisors (33690215).

118233385 is a wasteful number, since it uses less digits than its factorization.

118233385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15740.

The product of its digits is 17280, while the sum is 34.

The square root of 118233385 is about 10873.5176001145. The cubic root of 118233385 is about 490.8099681763.

The spelling of 118233385 in words is "one hundred eighteen million, two hundred thirty-three thousand, three hundred eighty-five".

Divisors: 1 5 17 85 89 445 1513 7565 15629 78145 265693 1328465 1390981 6954905 23646677 118233385