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312672613 = 11971811619
BaseRepresentation
bin10010101000110…
…000000101100101
3210210100102012011
4102220300011211
51120021010423
651005354221
710514446651
oct2250600545
9723312164
10312672613
1115054a620
1288868971
134ca16ca6
142d751a61
151c6b3b0d
hex12a30165

312672613 has 16 divisors (see below), whose sum is σ = 346731840. Its totient is φ = 279590400.

The previous prime is 312672593. The next prime is 312672617. The reversal of 312672613 is 316276213.

It is a cyclic number.

It is not a de Polignac number, because 312672613 - 213 = 312664421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312672617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192318 + ... + 193936.

It is an arithmetic number, because the mean of its divisors is an integer number (21670740).

Almost surely, 2312672613 is an apocalyptic number.

It is an amenable number.

312672613 is a deficient number, since it is larger than the sum of its proper divisors (34059227).

312672613 is a wasteful number, since it uses less digits than its factorization.

312672613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908.

The product of its digits is 9072, while the sum is 31.

The square root of 312672613 is about 17682.5510885732. The cubic root of 312672613 is about 678.7293261557.

The spelling of 312672613 in words is "three hundred twelve million, six hundred seventy-two thousand, six hundred thirteen".

Divisors: 1 11 97 181 1067 1619 1991 17557 17809 157043 193127 293039 1727473 3223429 28424783 312672613