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313203023 = 7532273719
BaseRepresentation
bin10010101010110…
…001100101001111
3210211100100202222
4102222301211033
51120134444043
651025005555
710522116230
oct2252614517
9724310688
10313203023
11150882081
1288a838bb
134cb71543
142d84d087
151c76ad68
hex12ab194f

313203023 has 16 divisors (see below), whose sum is σ = 366405120. Its totient is φ = 262163616.

The previous prime is 313202999. The next prime is 313203041. The reversal of 313203023 is 320302313.

It is a cyclic number.

It is not a de Polignac number, because 313203023 - 28 = 313202767 is a prime.

It is a super-2 number, since 2×3132030232 = 196192267232677058, 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 = 313202992 and 313203010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313203043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82358 + ... + 86076.

It is an arithmetic number, because the mean of its divisors is an integer number (22900320).

Almost surely, 2313203023 is an apocalyptic number.

313203023 is a deficient number, since it is larger than the sum of its proper divisors (53202097).

313203023 is a wasteful number, since it uses less digits than its factorization.

313203023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 313203023 is about 17697.5428520459. The cubic root of 313203023 is about 679.1129024917.

Adding to 313203023 its reverse (320302313), we get a palindrome (633505336).

It can be divided in two parts, 31320 and 3023, that added together give a palindrome (34343).

The spelling of 313203023 in words is "three hundred thirteen million, two hundred three thousand, twenty-three".

Divisors: 1 7 53 227 371 1589 3719 12031 26033 84217 197107 844213 1379749 5909491 44743289 313203023