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318444607 = 1337662047
BaseRepresentation
bin10010111110110…
…001010000111111
3211012012122212201
4102332301100333
51123010211412
651333212331
710614506635
oct2276612077
9735178781
10318444607
11153832168
128a7910a7
1350c88280
1430415355
151ce53e57
hex12fb143f

318444607 has 8 divisors (see below), whose sum is σ = 352209536. Its totient is φ = 286003872.

The previous prime is 318444601. The next prime is 318444613. The reversal of 318444607 is 706444813.

It is an interprime number because it is at equal distance from previous prime (318444601) and next prime (318444613).

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 318444607 - 27 = 318444479 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318444601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330543 + ... + 331504.

It is an arithmetic number, because the mean of its divisors is an integer number (44026192).

Almost surely, 2318444607 is an apocalyptic number.

318444607 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

318444607 is a deficient number, since it is larger than the sum of its proper divisors (33764929).

318444607 is a wasteful number, since it uses less digits than its factorization.

318444607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662097.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 318444607 is about 17845.0163070814. The cubic root of 318444607 is about 682.8803763725.

The spelling of 318444607 in words is "three hundred eighteen million, four hundred forty-four thousand, six hundred seven".

Divisors: 1 13 37 481 662047 8606611 24495739 318444607