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312043007 = 17167109913
BaseRepresentation
bin10010100110010…
…110010111111111
3210202011102112102
4102212112113333
51114340334012
650544055315
710506215243
oct2246262777
9722142472
10312043007
1115015a591
128860453b
134c856543
142d62a423
151c5dc2c2
hex129965ff

312043007 has 8 divisors (see below), whose sum is σ = 332379936. Its totient is φ = 291926272.

The previous prime is 312042971. The next prime is 312043027. The reversal of 312043007 is 700340213.

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 312043007 - 26 = 312042943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312043007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312043027) 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, 52118 + ... + 57795.

It is an arithmetic number, because the mean of its divisors is an integer number (41547492).

Almost surely, 2312043007 is an apocalyptic number.

312043007 is a deficient number, since it is larger than the sum of its proper divisors (20336929).

312043007 is a wasteful number, since it uses less digits than its factorization.

312043007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110097.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 312043007 is about 17664.7390866664. The cubic root of 312043007 is about 678.2734508100.

The spelling of 312043007 in words is "three hundred twelve million, forty-three thousand, seven".

Divisors: 1 17 167 2839 109913 1868521 18355471 312043007