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313075553 = 7217375841
BaseRepresentation
bin10010101010010…
…010011101100001
3210211002212220212
4102222102131201
51120121404203
651022143505
710521045500
oct2252223541
9724085825
10313075553
111507a532a
1288a21b95
134cb2850b
142d818837
151c7431d8
hex12a92761

313075553 has 12 divisors (see below), whose sum is σ = 385613892. Its totient is φ = 252564480.

The previous prime is 313075531. The next prime is 313075571. The reversal of 313075553 is 355570313.

It can be written as a sum of positive squares in 2 ways, for example, as 261695329 + 51380224 = 16177^2 + 7168^2 .

It is not a de Polignac number, because 313075553 - 26 = 313075489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313075513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187088 + ... + 188753.

It is an arithmetic number, because the mean of its divisors is an integer number (32134491).

Almost surely, 2313075553 is an apocalyptic number.

It is an amenable number.

313075553 is a deficient number, since it is larger than the sum of its proper divisors (72538339).

313075553 is a wasteful number, since it uses less digits than its factorization.

313075553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375872 (or 375865 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 32.

The square root of 313075553 is about 17693.9411381410. The cubic root of 313075553 is about 679.0207596303.

The spelling of 313075553 in words is "three hundred thirteen million, seventy-five thousand, five hundred fifty-three".

Divisors: 1 7 17 49 119 833 375841 2630887 6389297 18416209 44725079 313075553