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313213433 = 1379304979
BaseRepresentation
bin10010101010110…
…100000111111001
3210211100220001112
4102222310013321
51120140312213
651025130105
710522161461
oct2252640771
9724326045
10313213433
11150889985
1288a89935
134cb761c0
142d852ba1
151c76dea8
hex12ab41f9

313213433 has 8 divisors (see below), whose sum is σ = 341577600. Its totient is φ = 285459408.

The previous prime is 313213357. The next prime is 313213489. The reversal of 313213433 is 334312313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313213433 - 216 = 313147897 is a prime.

It is a super-2 number, since 2×3132134332 = 196205309223290978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313213399 and 313213408.

It is not an unprimeable number, because it can be changed into a prime (313213493) 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, 151463 + ... + 153516.

It is an arithmetic number, because the mean of its divisors is an integer number (42697200).

Almost surely, 2313213433 is an apocalyptic number.

It is an amenable number.

313213433 is a deficient number, since it is larger than the sum of its proper divisors (28364167).

313213433 is a wasteful number, since it uses less digits than its factorization.

313213433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305071.

The product of its digits is 1944, while the sum is 23.

The square root of 313213433 is about 17697.8369582274. The cubic root of 313213433 is about 679.1204263516.

Adding to 313213433 its reverse (334312313), we get a palindrome (647525746).

The spelling of 313213433 in words is "three hundred thirteen million, two hundred thirteen thousand, four hundred thirty-three".

Divisors: 1 13 79 1027 304979 3964727 24093341 313213433