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312112306 = 21114186923
BaseRepresentation
bin10010100110100…
…111010010110010
3210202021221121001
4102212213102302
51114400043211
650545352214
710506624262
oct2246472262
9722257531
10312112306
111501a7660
128863866a
134c87bc4c
142d6477a2
151c602ac1
hex129a74b2

312112306 has 8 divisors (see below), whose sum is σ = 510729264. Its totient is φ = 141869220.

The previous prime is 312112271. The next prime is 312112327. The reversal of 312112306 is 603211213.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7093440 + ... + 7093483.

It is an arithmetic number, because the mean of its divisors is an integer number (63841158).

Almost surely, 2312112306 is an apocalyptic number.

312112306 is a deficient number, since it is larger than the sum of its proper divisors (198616958).

312112306 is a wasteful number, since it uses less digits than its factorization.

312112306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14186936.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 312112306 is about 17666.7004842444. The cubic root of 312112306 is about 678.3236577705.

Adding to 312112306 its reverse (603211213), we get a palindrome (915323519).

The spelling of 312112306 in words is "three hundred twelve million, one hundred twelve thousand, three hundred six".

Divisors: 1 2 11 22 14186923 28373846 156056153 312112306