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310020313 = 1719195479
BaseRepresentation
bin10010011110101…
…000100011011001
3210121100122220211
4102132220203121
51113331122223
650432451121
710453062211
oct2236504331
9717318824
10310020313
11149aa8939
12879a9aa1
134c2c8995
142d261241
151c33cd0d
hex127a88d9

310020313 has 8 divisors (see below), whose sum is σ = 329978880. Its totient is φ = 290253120.

The previous prime is 310020287. The next prime is 310020317. The reversal of 310020313 is 313020013.

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 310020313 - 25 = 310020281 is a prime.

It is a super-2 number, since 2×3100203132 = 192225188945235938, 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 = 310020293 and 310020302.

It is not an unprimeable number, because it can be changed into a prime (310020317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44493 + ... + 50986.

It is an arithmetic number, because the mean of its divisors is an integer number (41247360).

Almost surely, 2310020313 is an apocalyptic number.

It is an amenable number.

310020313 is a deficient number, since it is larger than the sum of its proper divisors (19958567).

310020313 is a wasteful number, since it uses less digits than its factorization.

310020313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95687.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 310020313 is about 17607.3937026466. The cubic root of 310020313 is about 676.8047272902.

Adding to 310020313 its reverse (313020013), we get a palindrome (623040326).

The spelling of 310020313 in words is "three hundred ten million, twenty thousand, three hundred thirteen".

Divisors: 1 17 191 3247 95479 1623143 18236489 310020313