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315044244 = 2232193111481
BaseRepresentation
bin10010110001110…
…011000110010100
3210221210220110100
4102301303012110
51121122403434
651132254100
710543555224
oct2261630624
9727726410
10315044244
1115191a449
1289611330
1350367618
142dbac084
151c9d1699
hex12c73194

315044244 has 72 divisors (see below), whose sum is σ = 841538880. Its totient is φ = 99100800.

The previous prime is 315044189. The next prime is 315044267. The reversal of 315044244 is 442440513.

It is a happy number.

315044244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 211984 + ... + 213464.

It is an arithmetic number, because the mean of its divisors is an integer number (11688040).

Almost surely, 2315044244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315044244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420769440).

315044244 is an abundant number, since it is smaller than the sum of its proper divisors (526494636).

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

315044244 is a wasteful number, since it uses less digits than its factorization.

315044244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 315044244 is about 17749.4857390292. The cubic root of 315044244 is about 680.4410662153.

Adding to 315044244 its reverse (442440513), we get a palindrome (757484757).

The spelling of 315044244 in words is "three hundred fifteen million, forty-four thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 311 342 622 684 933 1244 1481 1866 2799 2962 3732 4443 5598 5909 5924 8886 11196 11818 13329 17727 17772 23636 26658 28139 35454 53181 53316 56278 70908 84417 106362 112556 168834 212724 253251 337668 460591 506502 921182 1013004 1381773 1842364 2763546 4145319 5527092 8290638 8751229 16581276 17502458 26253687 35004916 52507374 78761061 105014748 157522122 315044244