Search a number
-
+
103005408 = 25311234241
BaseRepresentation
bin1100010001110…
…11110011100000
321011211012212010
412020323303200
5202332133113
614115432520
72360350212
oct610736340
9234735763
10103005408
1153164540
122a5b5740
131845675c
14d9745b2
15909a1c3
hex623bce0

103005408 has 96 divisors (see below), whose sum is σ = 307867392. Its totient is φ = 29849600.

The previous prime is 103005391. The next prime is 103005437. The reversal of 103005408 is 804500301.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1030054082 = 21220228154492928, 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 in 15 ways as a sum of consecutive naturals, for example, 22168 + ... + 26408.

It is an arithmetic number, because the mean of its divisors is an integer number (3206952).

Almost surely, 2103005408 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 103005408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153933696).

103005408 is an abundant number, since it is smaller than the sum of its proper divisors (204861984).

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

103005408 is a wasteful number, since it uses less digits than its factorization.

103005408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288 (or 4280 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 103005408 is about 10149.1579946319. The cubic root of 103005408 is about 468.7630185895.

Adding to 103005408 its reverse (804500301), we get a palindrome (907505709).

The spelling of 103005408 in words is "one hundred three million, five thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 23 24 32 33 44 46 48 66 69 88 92 96 132 138 176 184 253 264 276 352 368 506 528 552 736 759 1012 1056 1104 1518 2024 2208 3036 4048 4241 6072 8096 8482 12144 12723 16964 24288 25446 33928 46651 50892 67856 93302 97543 101784 135712 139953 186604 195086 203568 279906 292629 373208 390172 407136 559812 585258 746416 780344 1072973 1119624 1170516 1492832 1560688 2145946 2239248 2341032 3121376 3218919 4291892 4478496 4682064 6437838 8583784 9364128 12875676 17167568 25751352 34335136 51502704 103005408