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313003031 = 11171673813
BaseRepresentation
bin10010101010000…
…000110000010111
3210210222012102212
4102222000300113
51120112044111
651020424035
710520324165
oct2252006027
9723865385
10313003031
111507558a0
12889a801b
134cb014c3
142d7da235
151c72b98b
hex12a80c17

313003031 has 8 divisors (see below), whose sum is σ = 361543824. Its totient is φ = 267809920.

The previous prime is 313003027. The next prime is 313003037. The reversal of 313003031 is 130300313.

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 313003031 - 22 = 313003027 is a prime.

It is a super-2 number, since 2×3130030312 = 195941794830373922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313002997 and 313003015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313003037) 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 7 ways as a sum of consecutive naturals, for example, 836720 + ... + 837093.

It is an arithmetic number, because the mean of its divisors is an integer number (45192978).

Almost surely, 2313003031 is an apocalyptic number.

313003031 is a deficient number, since it is larger than the sum of its proper divisors (48540793).

313003031 is a wasteful number, since it uses less digits than its factorization.

313003031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673841.

The product of its (nonzero) digits is 81, while the sum is 14.

The square root of 313003031 is about 17691.8916738714. The cubic root of 313003031 is about 678.9683252728.

Adding to 313003031 its reverse (130300313), we get a palindrome (443303344).

The spelling of 313003031 in words is "three hundred thirteen million, three thousand, thirty-one".

Divisors: 1 11 17 187 1673813 18411943 28454821 313003031