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68658371 = 1633971061
BaseRepresentation
bin1000001011110…
…10010011000011
311210012012120122
410011322103003
5120034031441
610451330455
71462405115
oct405722303
9153165518
1068658371
1135835061
121abb0a2b
13112bbc72
1491933b5
15606334b
hex417a4c3

68658371 has 8 divisors (see below), whose sum is σ = 69318864. Its totient is φ = 68001120.

The previous prime is 68658361. The next prime is 68658407. The reversal of 68658371 is 17385686.

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

It is a cyclic number.

It is not a de Polignac number, because 68658371 - 26 = 68658307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68658311) 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, 64181 + ... + 65241.

It is an arithmetic number, because the mean of its divisors is an integer number (8664858).

Almost surely, 268658371 is an apocalyptic number.

68658371 is a deficient number, since it is larger than the sum of its proper divisors (660493).

68658371 is a wasteful number, since it uses less digits than its factorization.

68658371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621.

The product of its digits is 241920, while the sum is 44.

The square root of 68658371 is about 8286.0346970068. The cubic root of 68658371 is about 409.4785578076.

The spelling of 68658371 in words is "sixty-eight million, six hundred fifty-eight thousand, three hundred seventy-one".

Divisors: 1 163 397 1061 64711 172943 421217 68658371