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105225472 = 281124379
BaseRepresentation
bin1100100010110…
…01110100000000
321100000000012201
412101121310000
5203414203342
614235202544
72415254542
oct621316400
9240000181
10105225472
1154440500
122b2a6454
1318a530c1
14dd91692
159387db7
hex6459d00

105225472 has 108 divisors (see below), whose sum is σ = 239229760. Its totient is φ = 46126080.

The previous prime is 105225467. The next prime is 105225473. The reversal of 105225472 is 274522501.

It is a super-3 number, since 3×1052254723 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 105225472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105225473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1331929 + ... + 1332007.

Almost surely, 2105225472 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 105225472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119614880).

105225472 is an abundant number, since it is smaller than the sum of its proper divisors (134004288).

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

105225472 is an equidigital number, since it uses as much as digits as its factorization.

105225472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 105225472 is about 10257.9467731121. The cubic root of 105225472 is about 472.1068416567.

Adding to 105225472 its reverse (274522501), we get a palindrome (379747973).

The spelling of 105225472 in words is "one hundred five million, two hundred twenty-five thousand, four hundred seventy-two".

Divisors: 1 2 4 8 11 16 22 32 43 44 64 79 86 88 121 128 158 172 176 242 256 316 344 352 473 484 632 688 704 869 946 968 1264 1376 1408 1738 1892 1936 2528 2752 2816 3397 3476 3784 3872 5056 5203 5504 6794 6952 7568 7744 9559 10112 10406 11008 13588 13904 15136 15488 19118 20224 20812 27176 27808 30272 30976 37367 38236 41624 54352 55616 60544 74734 76472 83248 108704 111232 121088 149468 152944 166496 217408 222464 298936 305888 332992 411037 434816 597872 611776 665984 822074 869632 1195744 1223552 1331968 1644148 2391488 2447104 3288296 4782976 6576592 9565952 13153184 26306368 52612736 105225472