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312403124 = 22112719091
BaseRepresentation
bin10010100111101…
…110010010110100
3210202211201112002
4102213232102310
51114433344444
650555514432
710512245165
oct2247562264
9722751462
10312403124
11150386100
1288758a18
134c951427
142d6c176c
151c65dd4e
hex129ee4b4

312403124 has 36 divisors (see below), whose sum is σ = 609454944. Its totient is φ = 139986000.

The previous prime is 312403123. The next prime is 312403129. The reversal of 312403124 is 421304213.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 312403096 and 312403105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312403123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29819 + ... + 38909.

It is an arithmetic number, because the mean of its divisors is an integer number (16929304).

Almost surely, 2312403124 is an apocalyptic number.

It is an amenable number.

312403124 is a deficient number, since it is larger than the sum of its proper divisors (297051820).

312403124 is a wasteful number, since it uses less digits than its factorization.

312403124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9188 (or 9175 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 312403124 is about 17674.9292502120. The cubic root of 312403124 is about 678.5342737224.

Adding to 312403124 its reverse (421304213), we get a palindrome (733707337).

The spelling of 312403124 in words is "three hundred twelve million, four hundred three thousand, one hundred twenty-four".

Divisors: 1 2 4 11 22 44 71 121 142 242 284 484 781 1562 3124 8591 9091 17182 18182 34364 36364 100001 200002 400004 645461 1100011 1290922 2200022 2581844 4400044 7100071 14200142 28400284 78100781 156201562 312403124