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103144000 = 265312893
BaseRepresentation
bin1100010010111…
…01101001000000
321012002020222011
412021131221000
5202401102000
614122422304
72361465241
oct611355100
9235066864
10103144000
1153249683
122a661994
13184a486b
14d9accc8
1590c62ba
hex625da40

103144000 has 56 divisors (see below), whose sum is σ = 255455928. Its totient is φ = 41254400.

The previous prime is 103143979. The next prime is 103144009. The reversal of 103144000 is 441301.

It can be written as a sum of positive squares in 4 ways, for example, as 2663424 + 100480576 = 1632^2 + 10024^2 .

It is not an unprimeable number, because it can be changed into a prime (103144009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1554 + ... + 14446.

It is an arithmetic number, because the mean of its divisors is an integer number (4561713).

Almost surely, 2103144000 is an apocalyptic number.

103144000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103144000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127727964).

103144000 is an abundant number, since it is smaller than the sum of its proper divisors (152311928).

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

103144000 is an equidigital number, since it uses as much as digits as its factorization.

103144000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12920 (or 12900 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 103144000 is about 10155.9834580409. The cubic root of 103144000 is about 468.9731618887.

Adding to 103144000 its reverse (441301), we get a palindrome (103585301).

The spelling of 103144000 in words is "one hundred three million, one hundred forty-four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 800 1000 1600 2000 4000 8000 12893 25786 51572 64465 103144 128930 206288 257860 322325 412576 515720 644650 825152 1031440 1289300 1611625 2062880 2578600 3223250 4125760 5157200 6446500 10314400 12893000 20628800 25786000 51572000 103144000