Search a number
-
+
68654610336 = 25313192971571
BaseRepresentation
bin111111111100001000…
…100011011110100000
320120012122202120012210
4333330020203132200
52111101040012321
651312310322120
74650216362544
oct777410433640
9216178676183
1068654610336
1127130812994
1211380359340
1366217a98b0
14347407ba24
151bbc456b76
hexffc2237a0

68654610336 has 288 divisors, whose sum is σ = 207077145408. Its totient is φ = 19793756160.

The previous prime is 68654610307. The next prime is 68654610373. The reversal of 68654610336 is 63301645686.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43700431 + ... + 43702001.

It is an arithmetic number, because the mean of its divisors is an integer number (719017866).

Almost surely, 268654610336 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 68654610336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103538572704).

68654610336 is an abundant number, since it is smaller than the sum of its proper divisors (138422535072).

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

68654610336 is a wasteful number, since it uses less digits than its factorization.

68654610336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 68654610336 in words is "sixty-eight billion, six hundred fifty-four million, six hundred ten thousand, three hundred thirty-six".