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68272734 = 2343409647
BaseRepresentation
bin1000001000111…
…00001001011110
311202110121120210
410010130021132
5114434211414
610435153250
71456210605
oct404341136
9152417523
1068272734
11355a1352
121aa45826
13111b558a
1490d2a3c
155ed8e59
hex411c25e

68272734 has 32 divisors (see below), whose sum is σ = 140279040. Its totient is φ = 22139712.

The previous prime is 68272727. The next prime is 68272751. The reversal of 68272734 is 43727286.

It is a super-2 number, since 2×682727342 = 9322332415669512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68272692 and 68272701.

It is a congruent number.

It is an unprimeable number.

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, 105199 + ... + 105845.

It is an arithmetic number, because the mean of its divisors is an integer number (4383720).

Almost surely, 268272734 is an apocalyptic number.

68272734 is an abundant number, since it is smaller than the sum of its proper divisors (72006306).

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

68272734 is a wasteful number, since it uses less digits than its factorization.

68272734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104.

The product of its digits is 112896, while the sum is 39.

The square root of 68272734 is about 8262.7316306413. The cubic root of 68272734 is about 408.7104715397.

It can be divided in two parts, 68272 and 734, that added together give a triangular number (69006 = T371).

The spelling of 68272734 in words is "sixty-eight million, two hundred seventy-two thousand, seven hundred thirty-four".

Divisors: 1 2 3 6 43 86 129 258 409 647 818 1227 1294 1941 2454 3882 17587 27821 35174 52761 55642 83463 105522 166926 264623 529246 793869 1587738 11378789 22757578 34136367 68272734