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68277460 = 2258341131
BaseRepresentation
bin1000001000111…
…01010011010100
311202110212001211
410010131103110
5114434334320
610435231204
71456230436
oct404352324
9152425054
1068277460
11355a4959
121aa48504
13111b7784
1490d4656
155eda55a
hex411d4d4

68277460 has 24 divisors (see below), whose sum is σ = 145113696. Its totient is φ = 26981280.

The previous prime is 68277439. The next prime is 68277463. The reversal of 68277460 is 6477286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68277463) 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, 18906 + ... + 22225.

It is an arithmetic number, because the mean of its divisors is an integer number (6046404).

Almost surely, 268277460 is an apocalyptic number.

It is an amenable number.

68277460 is an abundant number, since it is smaller than the sum of its proper divisors (76836236).

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

68277460 is a wasteful number, since it uses less digits than its factorization.

68277460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41223 (or 41221 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 68277460 is about 8263.0176085980. The cubic root of 68277460 is about 408.7199019570.

The spelling of 68277460 in words is "sixty-eight million, two hundred seventy-seven thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1660 41131 82262 164524 205655 411310 822620 3413873 6827746 13655492 17069365 34138730 68277460