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76818012 = 22310336197
BaseRepresentation
bin1001001010000…
…10011001011100
312100112202111120
410211002121130
5124131134022
611342250540
71621641135
oct445023134
9170482446
1076818012
113a3a8567
1221886a50
1312bb7c5b
14a2b8c8c
156b25d5c
hex494265c

76818012 has 24 divisors (see below), whose sum is σ = 179444496. Its totient is φ = 25577088.

The previous prime is 76818011. The next prime is 76818037. The reversal of 76818012 is 21081867.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76818011) 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 7 ways as a sum of consecutive naturals, for example, 9298 + ... + 15494.

It is an arithmetic number, because the mean of its divisors is an integer number (7476854).

Almost surely, 276818012 is an apocalyptic number.

It is an amenable number.

76818012 is an abundant number, since it is smaller than the sum of its proper divisors (102626484).

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

76818012 is a wasteful number, since it uses less digits than its factorization.

76818012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7237 (or 7235 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 76818012 is about 8764.5885242834. The cubic root of 76818012 is about 425.0966552945.

Adding to 76818012 its reverse (21081867), we get a palindrome (97899879).

The spelling of 76818012 in words is "seventy-six million, eight hundred eighteen thousand, twelve".

Divisors: 1 2 3 4 6 12 1033 2066 3099 4132 6197 6198 12394 12396 18591 24788 37182 74364 6401501 12803002 19204503 25606004 38409006 76818012