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313230452 = 2278307613
BaseRepresentation
bin10010101010111…
…000010001110100
3210211101202101212
4102222320101310
51120141333302
651025340552
710522262213
oct2252702164
9724352355
10313230452
111508a0747
1288a97758
134cb80b82
142d85907a
151c774052
hex12ab8474

313230452 has 6 divisors (see below), whose sum is σ = 548153298. Its totient is φ = 156615224.

The previous prime is 313230433. The next prime is 313230473. The reversal of 313230452 is 254032313.

It can be written as a sum of positive squares in only one way, i.e., 294946276 + 18284176 = 17174^2 + 4276^2 .

It is a super-2 number, since 2×3132304522 = 196226632120248608, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 39153803 + ... + 39153810.

It is an arithmetic number, because the mean of its divisors is an integer number (91358883).

Almost surely, 2313230452 is an apocalyptic number.

It is an amenable number.

313230452 is a deficient number, since it is larger than the sum of its proper divisors (234922846).

313230452 is a wasteful number, since it uses less digits than its factorization.

313230452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78307617 (or 78307615 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 313230452 is about 17698.3177731670. The cubic root of 313230452 is about 679.1327265277.

Adding to 313230452 its reverse (254032313), we get a palindrome (567262765).

The spelling of 313230452 in words is "three hundred thirteen million, two hundred thirty thousand, four hundred fifty-two".

Divisors: 1 2 4 78307613 156615226 313230452