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118966031 = 166371537
BaseRepresentation
bin1110001011101…
…00011100001111
322021212002201022
413011310130033
5220423403111
615445504355
72643123512
oct705643417
9267762638
10118966031
1161175a38
1233a120bb
131b854402
1411b2ad79
15a69e2db
hex717470f

118966031 has 4 divisors (see below), whose sum is σ = 119039232. Its totient is φ = 118892832.

The previous prime is 118966027. The next prime is 118966037. The reversal of 118966031 is 130669811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130669811 = 997131063.

It is a cyclic number.

It is not a de Polignac number, because 118966031 - 22 = 118966027 is a prime.

It is a super-2 number, since 2×1189660312 = 28305833063785922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118965982 and 118966000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118966037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34106 + ... + 37431.

It is an arithmetic number, because the mean of its divisors is an integer number (29759808).

Almost surely, 2118966031 is an apocalyptic number.

118966031 is a deficient number, since it is larger than the sum of its proper divisors (73201).

118966031 is an equidigital number, since it uses as much as digits as its factorization.

118966031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73200.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 118966031 is about 10907.1550369471. The cubic root of 118966031 is about 491.8216670867.

The spelling of 118966031 in words is "one hundred eighteen million, nine hundred sixty-six thousand, thirty-one".

Divisors: 1 1663 71537 118966031