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76686368 = 2511217859
BaseRepresentation
bin1001001001000…
…10010000100000
312100022001220212
410210202100200
5124112430433
611335353252
71620552263
oct444422040
9170261825
1076686368
113a318670
1221822828
1312b70065
14a282cda
156aebd48
hex4922420

76686368 has 24 divisors (see below), whose sum is σ = 164702160. Its totient is φ = 34857280.

The previous prime is 76686367. The next prime is 76686377. The reversal of 76686368 is 86368667.

It is not an unprimeable number, because it can be changed into a prime (76686367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108578 + ... + 109281.

It is an arithmetic number, because the mean of its divisors is an integer number (6862590).

Almost surely, 276686368 is an apocalyptic number.

It is an amenable number.

76686368 is an abundant number, since it is smaller than the sum of its proper divisors (88015792).

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

76686368 is a wasteful number, since it uses less digits than its factorization.

76686368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217880 (or 217872 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 50.

The square root of 76686368 is about 8757.0753108558. The cubic root of 76686368 is about 424.8536852742.

The spelling of 76686368 in words is "seventy-six million, six hundred eighty-six thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 217859 435718 871436 1742872 2396449 3485744 4792898 6971488 9585796 19171592 38343184 76686368