Search a number
-
+
68710422 = 231119157349
BaseRepresentation
bin1000001100001…
…11000000010110
311210021211222110
410012013000112
5120042213142
610452411450
71463012634
oct406070026
9153254873
1068710422
1135870180
121b016b86
1311309871
1491a8354
15607399c
hex4187016

68710422 has 64 divisors (see below), whose sum is σ = 159264000. Its totient is φ = 19543680.

The previous prime is 68710409. The next prime is 68710427. The reversal of 68710422 is 22401786.

It is a super-2 number, since 2×687104222 = 9442244182836168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68710422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68710427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196704 + ... + 197052.

It is an arithmetic number, because the mean of its divisors is an integer number (2488500).

Almost surely, 268710422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68710422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79632000).

68710422 is an abundant number, since it is smaller than the sum of its proper divisors (90553578).

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

68710422 is a wasteful number, since it uses less digits than its factorization.

68710422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 68710422 is about 8289.1749891048. The cubic root of 68710422 is about 409.5820090657.

The spelling of 68710422 in words is "sixty-eight million, seven hundred ten thousand, four hundred twenty-two".

Divisors: 1 2 3 6 11 19 22 33 38 57 66 114 157 209 314 349 418 471 627 698 942 1047 1254 1727 2094 2983 3454 3839 5181 5966 6631 7678 8949 10362 11517 13262 17898 19893 23034 32813 39786 54793 65626 72941 98439 109586 145882 164379 196878 218823 328758 437646 602723 1041067 1205446 1808169 2082134 3123201 3616338 6246402 11451737 22903474 34355211 68710422