Search a number
-
+
68461360 = 2451177797
BaseRepresentation
bin1000001010010…
…10001100110000
311202211012022221
410011022030300
5120011230420
610443210424
71460624542
oct405121460
9152735287
1068461360
1135710040
121ab16a14
13112503a6
149141692
156024caa
hex414a330

68461360 has 40 divisors (see below), whose sum is σ = 173645136. Its totient is φ = 24894720.

The previous prime is 68461357. The next prime is 68461369. The reversal of 68461360 is 6316486.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68461369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38019 + ... + 39778.

Almost surely, 268461360 is an apocalyptic number.

It is an amenable number.

68461360 is an abundant number, since it is smaller than the sum of its proper divisors (105183776).

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

68461360 is a wasteful number, since it uses less digits than its factorization.

68461360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77821 (or 77815 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 68461360 is about 8274.1380215706. The cubic root of 68461360 is about 409.0865246967.

The spelling of 68461360 in words is "sixty-eight million, four hundred sixty-one thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 880 77797 155594 311188 388985 622376 777970 855767 1244752 1555940 1711534 3111880 3423068 4278835 6223760 6846136 8557670 13692272 17115340 34230680 68461360