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313001320 = 23514952517
BaseRepresentation
bin10010101010000…
…000010101101000
3210210222010002111
4102222000111220
51120112020240
651020412104
710520316202
oct2252002550
9723863074
10313001320
11150754585
12889a7034
134cb007a8
142d7d9772
151c72b1ea
hex12a80568

313001320 has 32 divisors (see below), whose sum is σ = 708993000. Its totient is φ = 124357888.

The previous prime is 313001303. The next prime is 313001333. The reversal of 313001320 is 23100313.

313001320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 179506404 + 133494916 = 13398^2 + 11554^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 313001320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20299 + ... + 32218.

Almost surely, 2313001320 is an apocalyptic number.

It is an amenable number.

313001320 is an abundant number, since it is smaller than the sum of its proper divisors (395991680).

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

313001320 is a wasteful number, since it uses less digits than its factorization.

313001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52677 (or 52673 counting only the distinct ones).

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

The square root of 313001320 is about 17691.8433183205. The cubic root of 313001320 is about 678.9670880996.

Adding to 313001320 its reverse (23100313), we get a palindrome (336101633).

The spelling of 313001320 in words is "three hundred thirteen million, one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 149 298 596 745 1192 1490 2980 5960 52517 105034 210068 262585 420136 525170 1050340 2100680 7825033 15650066 31300132 39125165 62600264 78250330 156500660 313001320