Search a number
-
+
68117460 = 22351135291
BaseRepresentation
bin1000000111101…
…10001111010100
311202011201120220
410003312033110
5114414224320
610431554340
71454663115
oct403661724
9152151526
1068117460
11354a5724
121a98b9b0
131115c9b8
14909220c
155ea7e40
hex40f63d4

68117460 has 24 divisors (see below), whose sum is σ = 190729056. Its totient is φ = 18164640.

The previous prime is 68117437. The next prime is 68117551. The reversal of 68117460 is 6471186.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567586 + ... + 567705.

It is an arithmetic number, because the mean of its divisors is an integer number (7947044).

Almost surely, 268117460 is an apocalyptic number.

68117460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68117460 is an abundant number, since it is smaller than the sum of its proper divisors (122611596).

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

68117460 is a wasteful number, since it uses less digits than its factorization.

68117460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135303 (or 1135301 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 68117460 is about 8253.3302369407. The cubic root of 68117460 is about 408.4003903015.

The spelling of 68117460 in words is "sixty-eight million, one hundred seventeen thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1135291 2270582 3405873 4541164 5676455 6811746 11352910 13623492 17029365 22705820 34058730 68117460