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68192976 = 24319233251
BaseRepresentation
bin1000001000010…
…00101011010000
311202022120011210
410010020223100
5114424133401
610433340120
71455426225
oct404105320
9152276153
1068192976
1135547435
121aa07640
1311188197
1490b194c
155ec04d6
hex4108ad0

68192976 has 80 divisors (see below), whose sum is σ = 193559040. Its totient is φ = 20592000.

The previous prime is 68192939. The next prime is 68192977. The reversal of 68192976 is 67929186.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68192977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19351 + ... + 22601.

It is an arithmetic number, because the mean of its divisors is an integer number (2419488).

Almost surely, 268192976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68192976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96779520).

68192976 is an abundant number, since it is smaller than the sum of its proper divisors (125366064).

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

68192976 is a wasteful number, since it uses less digits than its factorization.

68192976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304 (or 3298 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 68192976 is about 8257.9038502516. The cubic root of 68192976 is about 408.5512540891.

The spelling of 68192976 in words is "sixty-eight million, one hundred ninety-two thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 16 19 23 24 38 46 48 57 69 76 92 114 138 152 184 228 276 304 368 437 456 552 874 912 1104 1311 1748 2622 3251 3496 5244 6502 6992 9753 10488 13004 19506 20976 26008 39012 52016 61769 74773 78024 123538 149546 156048 185307 224319 247076 299092 370614 448638 494152 598184 741228 897276 988304 1196368 1420687 1482456 1794552 2841374 2964912 3589104 4262061 5682748 8524122 11365496 17048244 22730992 34096488 68192976