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313304530 = 257211371571
BaseRepresentation
bin10010101011001…
…010010111010010
3210211112112000111
4102223022113102
51120201221110
651031111534
710523021200
oct2253122722
9724475014
10313304530
11150941370
1288b125aa
134cba87c6
142d878070
151c78ae8a
hex12aca5d2

313304530 has 96 divisors (see below), whose sum is σ = 735469632. Its totient is φ = 94953600.

The previous prime is 313304527. The next prime is 313304531. The reversal of 313304530 is 35403313.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (313304531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 198645 + ... + 200215.

It is an arithmetic number, because the mean of its divisors is an integer number (7661142).

Almost surely, 2313304530 is an apocalyptic number.

313304530 is an abundant number, since it is smaller than the sum of its proper divisors (422165102).

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

313304530 is a wasteful number, since it uses less digits than its factorization.

313304530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 313304530 is about 17700.4104472184. The cubic root of 313304530 is about 679.1862598803.

Adding to 313304530 its reverse (35403313), we get a palindrome (348707843).

The spelling of 313304530 in words is "three hundred thirteen million, three hundred four thousand, five hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 37 49 55 70 74 77 98 110 154 185 245 259 370 385 407 490 518 539 770 814 1078 1295 1571 1813 2035 2590 2695 2849 3142 3626 4070 5390 5698 7855 9065 10997 14245 15710 17281 18130 19943 21994 28490 34562 39886 54985 58127 76979 86405 99715 109970 116254 120967 153958 172810 199430 241934 290635 384895 406889 581270 604835 639397 769790 813778 846769 1209670 1278794 1693538 2034445 2848223 3196985 4068890 4233845 4475779 5696446 6393970 8467690 8951558 14241115 22378895 28482230 31330453 44757790 62660906 156652265 313304530