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68273772 = 22372928027
BaseRepresentation
bin1000001000111…
…00011001101100
311202110200000020
410010130121230
5114434230042
610435202140
71456213620
oct404343154
9152420006
1068273772
11355a2106
121aa46350
13111b5ba8
1490d3180
155ed93ec
hex411c66c

68273772 has 48 divisors (see below), whose sum is σ = 188348160. Its totient is φ = 18833472.

The previous prime is 68273771. The next prime is 68273789. The reversal of 68273772 is 27737286.

It is a super-2 number, since 2×682737722 = 9322615886215968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (68273771) 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 15 ways as a sum of consecutive naturals, for example, 11578 + ... + 16449.

It is an arithmetic number, because the mean of its divisors is an integer number (3923920).

Almost surely, 268273772 is an apocalyptic number.

It is an amenable number.

68273772 is an abundant number, since it is smaller than the sum of its proper divisors (120074388).

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

68273772 is a wasteful number, since it uses less digits than its factorization.

68273772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28070 (or 28068 counting only the distinct ones).

The product of its digits is 197568, while the sum is 42.

The square root of 68273772 is about 8262.7944425600. The cubic root of 68273772 is about 408.7125428366.

The spelling of 68273772 in words is "sixty-eight million, two hundred seventy-three thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 29 42 58 84 87 116 174 203 348 406 609 812 1218 2436 28027 56054 84081 112108 168162 196189 336324 392378 588567 784756 812783 1177134 1625566 2354268 2438349 3251132 4876698 5689481 9753396 11378962 17068443 22757924 34136886 68273772