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313210404 = 223213251481
BaseRepresentation
bin10010101010110…
…011011000100100
3210211100201220100
4102222303120210
51120140213104
651025104100
710522146603
oct2252633044
9724321810
10313210404
11150887681
1288a88030
134cb74a00
142d851a3a
151c76d139
hex12ab3624

313210404 has 54 divisors (see below), whose sum is σ = 857329746. Its totient is φ = 96370560.

The previous prime is 313210379. The next prime is 313210423. The reversal of 313210404 is 404012313.

It can be written as a sum of positive squares in 3 ways, for example, as 6260004 + 306950400 = 2502^2 + 17520^2 .

It is a super-3 number, since 3×3132104043 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 19657 + ... + 31824.

Almost surely, 2313210404 is an apocalyptic number.

It is an amenable number.

313210404 is an abundant number, since it is smaller than the sum of its proper divisors (544119342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313210404 is a wasteful number, since it uses less digits than its factorization.

313210404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51517 (or 51499 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 313210404 is about 17697.7513825910. The cubic root of 313210404 is about 679.1182371496.

Adding to 313210404 its reverse (404012313), we get a palindrome (717222717).

The spelling of 313210404 in words is "three hundred thirteen million, two hundred ten thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 169 234 338 468 507 676 1014 1521 2028 3042 6084 51481 102962 154443 205924 308886 463329 617772 669253 926658 1338506 1853316 2007759 2677012 4015518 6023277 8031036 8700289 12046554 17400578 24093108 26100867 34801156 52201734 78302601 104403468 156605202 313210404