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447134272 = 261317101313
BaseRepresentation
bin11010101001101…
…011101001000000
31011011100202220121
4122221223221000
51403431244042
6112211350024
714036402314
oct3251535100
91134322817
10447134272
1120a439662
121058b2314
13718354c0
1443553b44
15293c4367
hex1aa6ba40

447134272 has 112 divisors (see below), whose sum is σ = 1025024112. Its totient is φ = 191692800.

The previous prime is 447134269. The next prime is 447134279. The reversal of 447134272 is 272431744.

It can be written as a sum of positive squares in 8 ways, for example, as 5125696 + 442008576 = 2264^2 + 21024^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447134279) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1428388 + ... + 1428700.

It is an arithmetic number, because the mean of its divisors is an integer number (9152001).

Almost surely, 2447134272 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 447134272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512512056).

447134272 is an abundant number, since it is smaller than the sum of its proper divisors (577889840).

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

447134272 is a wasteful number, since it uses less digits than its factorization.

447134272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 446 counting only the distinct ones).

The product of its digits is 37632, while the sum is 34.

The square root of 447134272 is about 21145.5496972767. The cubic root of 447134272 is about 764.6792748993.

The spelling of 447134272 in words is "four hundred forty-seven million, one hundred thirty-four thousand, two hundred seventy-two".

Divisors: 1 2 4 8 13 16 17 26 32 34 52 64 68 101 104 136 202 208 221 272 313 404 416 442 544 626 808 832 884 1088 1252 1313 1616 1717 1768 2504 2626 3232 3434 3536 4069 5008 5252 5321 6464 6868 7072 8138 10016 10504 10642 13736 14144 16276 20032 21008 21284 22321 27472 31613 32552 42016 42568 44642 54944 63226 65104 69173 84032 85136 89284 109888 126452 130208 138346 170272 178568 252904 260416 276692 340544 357136 410969 505808 537421 553384 714272 821938 1011616 1074842 1106768 1428544 1643876 2023232 2149684 2213536 3287752 4299368 4427072 6575504 6986473 8598736 13151008 13972946 17197472 26302016 27945892 34394944 55891784 111783568 223567136 447134272