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68596836 = 223711217397
BaseRepresentation
bin1000001011010…
…11010001100100
311210002002011120
410011223101210
5120030044321
610450133540
71462030530
oct405532144
9153062146
1068596836
11357a2900
121ab812b0
1311299c59
149178bc0
15604eec6
hex416b464

68596836 has 144 divisors (see below), whose sum is σ = 213429888. Its totient is φ = 16727040.

The previous prime is 68596817. The next prime is 68596837. The reversal of 68596836 is 63869586.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68596837) 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 47 ways as a sum of consecutive naturals, for example, 172590 + ... + 172986.

It is an arithmetic number, because the mean of its divisors is an integer number (1482152).

Almost surely, 268596836 is an apocalyptic number.

68596836 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68596836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106714944).

68596836 is an abundant number, since it is smaller than the sum of its proper divisors (144833052).

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

68596836 is a wasteful number, since it uses less digits than its factorization.

68596836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 437 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The square root of 68596836 is about 8282.3206892754. The cubic root of 68596836 is about 409.3561896530.

It can be divided in two parts, 6859 and 6836, that added together give a triangular number (13695 = T165).

The spelling of 68596836 in words is "sixty-eight million, five hundred ninety-six thousand, eight hundred thirty-six".

Divisors: 1 2 3 4 6 7 11 12 14 17 21 22 28 33 34 42 44 51 66 68 77 84 102 119 121 132 154 187 204 231 238 242 308 357 363 374 397 462 476 484 561 714 726 748 794 847 924 1122 1191 1309 1428 1452 1588 1694 2057 2244 2382 2541 2618 2779 3388 3927 4114 4367 4764 5082 5236 5558 6171 6749 7854 8228 8337 8734 10164 11116 12342 13101 13498 14399 15708 16674 17468 20247 24684 26202 26996 28798 30569 33348 40494 43197 47243 48037 52404 57596 61138 74239 80988 86394 91707 94486 96074 122276 141729 144111 148478 172788 183414 188972 192148 222717 283458 288222 296956 336259 366828 445434 519673 566916 576444 672518 816629 890868 1008777 1039346 1345036 1559019 1633258 2017554 2078692 2449887 3118038 3266516 4035108 4899774 5716403 6236076 9799548 11432806 17149209 22865612 34298418 68596836