Search a number
-
+
68342454 = 234735779
BaseRepresentation
bin1000001001011…
…01001010110110
311202121011020000
410010231022312
5114443424304
610440452130
71456621065
oct404551266
9152534200
1068342454
1135639774
121aa7a046
131120b22b
1491101dc
155eee939
hex412d2b6

68342454 has 40 divisors (see below), whose sum is σ = 155262360. Its totient is φ = 22464864.

The previous prime is 68342429. The next prime is 68342459. The reversal of 68342454 is 45424386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68342459) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8937 + ... + 14715.

It is an arithmetic number, because the mean of its divisors is an integer number (3881559).

Almost surely, 268342454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68342454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77631180).

68342454 is an abundant number, since it is smaller than the sum of its proper divisors (86919906).

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

68342454 is a wasteful number, since it uses less digits than its factorization.

68342454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5866 (or 5857 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 68342454 is about 8266.9494978499. The cubic root of 68342454 is about 408.8495490216.

The spelling of 68342454 in words is "sixty-eight million, three hundred forty-two thousand, four hundred fifty-four".

Divisors: 1 2 3 6 9 18 27 54 73 81 146 162 219 438 657 1314 1971 3942 5779 5913 11558 11826 17337 34674 52011 104022 156033 312066 421867 468099 843734 936198 1265601 2531202 3796803 7593606 11390409 22780818 34171227 68342454