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312678106 = 21312026081
BaseRepresentation
bin10010101000110…
…001011011011010
3210210100200201121
4102220301123122
51120021144411
651005435454
710514501656
oct2250613332
9723320647
10312678106
11150553764
128886bb8a
134ca19640
142d753a66
151c6b5571
hex12a316da

312678106 has 8 divisors (see below), whose sum is σ = 505095444. Its totient is φ = 144312960.

The previous prime is 312678101. The next prime is 312678109. The reversal of 312678106 is 601876213.

It can be written as a sum of positive squares in 2 ways, for example, as 309584025 + 3094081 = 17595^2 + 1759^2 .

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

It is not an unprimeable number, because it can be changed into a prime (312678101) 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, 6013015 + ... + 6013066.

Almost surely, 2312678106 is an apocalyptic number.

312678106 is a deficient number, since it is larger than the sum of its proper divisors (192417338).

312678106 is a wasteful number, since it uses less digits than its factorization.

312678106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12026096.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 312678106 is about 17682.7064105018. The cubic root of 312678106 is about 678.7333007478.

The spelling of 312678106 in words is "three hundred twelve million, six hundred seventy-eight thousand, one hundred six".

Divisors: 1 2 13 26 12026081 24052162 156339053 312678106