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68710446 = 2327331359
BaseRepresentation
bin1000001100001…
…11000000101110
311210021212000100
410012013000232
5120042213241
610452411530
71463013000
oct406070056
9153255010
1068710446
11358701a2
121b016ba6
131130988c
1491a8370
1560739b6
hex418702e

68710446 has 96 divisors (see below), whose sum is σ = 179712000. Its totient is φ = 18945360.

The previous prime is 68710427. The next prime is 68710457. The reversal of 68710446 is 64401786.

It is a super-2 number, since 2×687104462 = 9442250779037832, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68710446.

It is a congruent number.

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, 191215 + ... + 191573.

It is an arithmetic number, because the mean of its divisors is an integer number (1872000).

Almost surely, 268710446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68710446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89856000).

68710446 is an abundant number, since it is smaller than the sum of its proper divisors (111001554).

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

68710446 is a wasteful number, since it uses less digits than its factorization.

68710446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 68710446 is about 8289.1764367759. The cubic root of 68710446 is about 409.5820567536.

The spelling of 68710446 in words is "sixty-eight million, seven hundred ten thousand, four hundred forty-six".

Divisors: 1 2 3 6 7 9 14 18 21 31 42 49 62 63 93 98 126 147 186 217 279 294 343 359 434 441 558 651 686 718 882 1029 1077 1302 1519 1953 2058 2154 2513 3038 3087 3231 3906 4557 5026 6174 6462 7539 9114 10633 11129 13671 15078 17591 21266 22258 22617 27342 31899 33387 35182 45234 52773 63798 66774 77903 95697 100161 105546 123137 155806 158319 191394 200322 233709 246274 316638 369411 467418 545321 701127 738822 1090642 1108233 1402254 1635963 2216466 3271926 3817247 4907889 7634494 9815778 11451741 22903482 34355223 68710446