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68460278 = 2214315973
BaseRepresentation
bin1000001010010…
…01111011110110
311202211010211212
410011021323312
5120011212103
610443201422
71460621435
oct405117366
9152733755
1068460278
113570a247
121ab16272
131124ca53
14914111c
1560247d8
hex4149ef6

68460278 has 8 divisors (see below), whose sum is σ = 102744768. Its totient is φ = 34212024.

The previous prime is 68460277. The next prime is 68460281. The reversal of 68460278 is 87206486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68460277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3701 + ... + 12272.

It is an arithmetic number, because the mean of its divisors is an integer number (12843096).

Almost surely, 268460278 is an apocalyptic number.

68460278 is a deficient number, since it is larger than the sum of its proper divisors (34284490).

68460278 is a wasteful number, since it uses less digits than its factorization.

68460278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18118.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 68460278 is about 8274.0726368579. The cubic root of 68460278 is about 409.0843695445.

The spelling of 68460278 in words is "sixty-eight million, four hundred sixty thousand, two hundred seventy-eight".

Divisors: 1 2 2143 4286 15973 31946 34230139 68460278