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8146944 = 212321317
BaseRepresentation
bin11111000101000000000000
3120022220111200
4133011000000
54041200234
6450341200
7126151011
oct37050000
916286450
108146944
114664a13
12288a800
1318c32a0
141121008
15aadd99
hex7c5000

8146944 has 156 divisors (see below), whose sum is σ = 26833716. Its totient is φ = 2359296.

The previous prime is 8146937. The next prime is 8146949. The reversal of 8146944 is 4496418.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3686400 + 4460544 = 1920^2 + 2112^2 .

It is a tau number, because it is divible by the number of its divisors (156).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 8146899 and 8146908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8146949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 479224 + ... + 479240.

It is an arithmetic number, because the mean of its divisors is an integer number (172011).

Almost surely, 28146944 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 8146944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13416858).

8146944 is an abundant number, since it is smaller than the sum of its proper divisors (18686772).

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

8146944 is a wasteful number, since it uses less digits than its factorization.

8146944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 35 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 8146944 is about 2854.2851994852. The cubic root of 8146944 is about 201.2171115064.

The spelling of 8146944 in words is "eight million, one hundred forty-six thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 13 16 17 18 24 26 32 34 36 39 48 51 52 64 68 72 78 96 102 104 117 128 136 144 153 156 192 204 208 221 234 256 272 288 306 312 384 408 416 442 468 512 544 576 612 624 663 768 816 832 884 936 1024 1088 1152 1224 1248 1326 1536 1632 1664 1768 1872 1989 2048 2176 2304 2448 2496 2652 3072 3264 3328 3536 3744 3978 4096 4352 4608 4896 4992 5304 6144 6528 6656 7072 7488 7956 8704 9216 9792 9984 10608 12288 13056 13312 14144 14976 15912 17408 18432 19584 19968 21216 26112 26624 28288 29952 31824 34816 36864 39168 39936 42432 52224 53248 56576 59904 63648 69632 78336 79872 84864 104448 113152 119808 127296 156672 159744 169728 208896 226304 239616 254592 313344 339456 452608 479232 509184 626688 678912 905216 1018368 1357824 2036736 2715648 4073472 8146944