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68837418 = 23313219397
BaseRepresentation
bin1000001101001…
…10000000101010
311210112022012000
410012212000222
5120110244133
610455231430
71464052116
oct406460052
9153468160
1068837418
1135947631
121b078576
1311352600
1491dc746
15609b413
hex41a602a

68837418 has 96 divisors (see below), whose sum is σ = 174801600. Its totient is φ = 20015424.

The previous prime is 68837393. The next prime is 68837441. The reversal of 68837418 is 81473886.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173196 + ... + 173592.

It is an arithmetic number, because the mean of its divisors is an integer number (1820850).

Almost surely, 268837418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68837418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87400800).

68837418 is an abundant number, since it is smaller than the sum of its proper divisors (105964182).

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

68837418 is a wasteful number, since it uses less digits than its factorization.

68837418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 434 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 68837418 is about 8296.8318049723. The cubic root of 68837418 is about 409.8341943089.

The spelling of 68837418 in words is "sixty-eight million, eight hundred thirty-seven thousand, four hundred eighteen".

Divisors: 1 2 3 6 9 13 18 19 26 27 38 39 54 57 78 114 117 169 171 234 247 338 342 351 397 494 507 513 702 741 794 1014 1026 1191 1482 1521 2223 2382 3042 3211 3573 4446 4563 5161 6422 6669 7146 7543 9126 9633 10322 10719 13338 15086 15483 19266 21438 22629 28899 30966 45258 46449 57798 67093 67887 86697 92898 98059 134186 135774 139347 173394 196118 201279 203661 278694 294177 402558 407322 588354 603837 882531 1207674 1274767 1765062 1811511 2549534 2647593 3623022 3824301 5295186 7648602 11472903 22945806 34418709 68837418