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118031144 = 23711217419
BaseRepresentation
bin1110000100100…
…00001100101000
322020002121021212
413002100030220
5220203444034
615413452252
72632151060
oct702201450
9266077255
10118031144
1160697600
1233641088
131b5b7a1a
14119663a0
15a5672ce
hex7090328

118031144 has 48 divisors (see below), whose sum is σ = 278023200. Its totient is φ = 45983520.

The previous prime is 118031129. The next prime is 118031161. The reversal of 118031144 is 441130811.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1934 + ... + 15485.

It is an arithmetic number, because the mean of its divisors is an integer number (5792150).

Almost surely, 2118031144 is an apocalyptic number.

118031144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

118031144 is an abundant number, since it is smaller than the sum of its proper divisors (159992056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118031144 is a wasteful number, since it uses less digits than its factorization.

118031144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17454 (or 17439 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 118031144 is about 10864.2139154197. The cubic root of 118031144 is about 490.5299611117.

Adding to 118031144 its reverse (441130811), we get a palindrome (559161955).

The spelling of 118031144 in words is "one hundred eighteen million, thirty-one thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 121 154 242 308 484 616 847 968 1694 3388 6776 17419 34838 69676 121933 139352 191609 243866 383218 487732 766436 975464 1341263 1532872 2107699 2682526 4215398 5365052 8430796 10730104 14753893 16861592 29507786 59015572 118031144