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68670406 = 274905029
BaseRepresentation
bin1000001011111…
…01001111000110
311210012211002101
410011331033012
5120034423111
610451502314
71462455160
oct405751706
9153184071
1068670406
1135843102
121abb799a
13112c459c
149197930
156066bc1
hex417d3c6

68670406 has 8 divisors (see below), whose sum is σ = 117720720. Its totient is φ = 29430168.

The previous prime is 68670403. The next prime is 68670461. The reversal of 68670406 is 60407686.

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 (68670401) 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, 2452501 + ... + 2452528.

It is an arithmetic number, because the mean of its divisors is an integer number (14715090).

Almost surely, 268670406 is an apocalyptic number.

68670406 is a deficient number, since it is larger than the sum of its proper divisors (49050314).

68670406 is a wasteful number, since it uses less digits than its factorization.

68670406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905038.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 68670406 is about 8286.7608871018. The cubic root of 68670406 is about 409.5024819917.

The spelling of 68670406 in words is "sixty-eight million, six hundred seventy thousand, four hundred six".

Divisors: 1 2 7 14 4905029 9810058 34335203 68670406