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312270047 = 3735923509
BaseRepresentation
bin10010100111001…
…101110011011111
3210202120221222022
4102213031303133
51114420120142
650553010355
710511152205
oct2247156337
9722527868
10312270047
111502a5121
12886b39bb
134c90599b
142d689075
151c6346d2
hex129cdcdf

312270047 has 8 divisors (see below), whose sum is σ = 321616800. Its totient is φ = 302971104.

The previous prime is 312270031. The next prime is 312270097. The reversal of 312270047 is 740072213.

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 312270047 - 24 = 312270031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312269998 and 312270025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312270097) 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, 1529 + ... + 25037.

It is an arithmetic number, because the mean of its divisors is an integer number (40202100).

Almost surely, 2312270047 is an apocalyptic number.

312270047 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

312270047 is a deficient number, since it is larger than the sum of its proper divisors (9346753).

312270047 is a wasteful number, since it uses less digits than its factorization.

312270047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23905.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 312270047 is about 17671.1642796959. The cubic root of 312270047 is about 678.4379130448.

The spelling of 312270047 in words is "three hundred twelve million, two hundred seventy thousand, forty-seven".

Divisors: 1 37 359 13283 23509 869833 8439731 312270047