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68679670 = 256867967
BaseRepresentation
bin1000001011111…
…11011111110110
311210020021210111
410011333133312
5120040222140
610452013234
71462524163
oct405773766
9153207714
1068679670
113584a064
121b00121a
13112c8877
14919b06a
1560697ea
hex417f7f6

68679670 has 8 divisors (see below), whose sum is σ = 123623424. Its totient is φ = 27471864.

The previous prime is 68679647. The next prime is 68679673. The reversal of 68679670 is 7697686.

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 (68679673) 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, 3433974 + ... + 3433993.

It is an arithmetic number, because the mean of its divisors is an integer number (15452928).

Almost surely, 268679670 is an apocalyptic number.

68679670 is a deficient number, since it is larger than the sum of its proper divisors (54943754).

68679670 is a wasteful number, since it uses less digits than its factorization.

68679670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6867974.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 68679670 is about 8287.3198321291. The cubic root of 68679670 is about 409.5208958453.

The spelling of 68679670 in words is "sixty-eight million, six hundred seventy-nine thousand, six hundred seventy".

Divisors: 1 2 5 10 6867967 13735934 34339835 68679670