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105069440 = 275747499
BaseRepresentation
bin1100100001100…
…11101110000000
321022201002011202
412100303232000
5203344210230
614232000332
72414034620
oct620635600
9238632152
10105069440
1154344253
122b2300a8
13189ca088
14dd50880
159356a45
hex6433b80

105069440 has 128 divisors (see below), whose sum is σ = 293760000. Its totient is φ = 35186688.

The previous prime is 105069427. The next prime is 105069443. The reversal of 105069440 is 44960501.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1050694402 = 22079174443827200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105069443) 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 15 ways as a sum of consecutive naturals, for example, 210311 + ... + 210809.

It is an arithmetic number, because the mean of its divisors is an integer number (2295000).

Almost surely, 2105069440 is an apocalyptic number.

105069440 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 105069440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146880000).

105069440 is an abundant number, since it is smaller than the sum of its proper divisors (188690560).

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

105069440 is an equidigital number, since it uses as much as digits as its factorization.

105069440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 105069440 is about 10250.3385309950. The cubic root of 105069440 is about 471.8733740569.

It can be divided in two parts, 10 and 5069440, that multiplied together give a square (50694400 = 71202).

The spelling of 105069440 in words is "one hundred five million, sixty-nine thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 47 56 64 70 80 94 112 128 140 160 188 224 235 280 320 329 376 448 470 499 560 640 658 752 896 940 998 1120 1316 1504 1645 1880 1996 2240 2495 2632 3008 3290 3493 3760 3992 4480 4990 5264 6016 6580 6986 7520 7984 9980 10528 13160 13972 15040 15968 17465 19960 21056 23453 26320 27944 30080 31936 34930 39920 42112 46906 52640 55888 63872 69860 79840 93812 105280 111776 117265 139720 159680 164171 187624 210560 223552 234530 279440 319360 328342 375248 447104 469060 558880 656684 750496 820855 938120 1117760 1313368 1500992 1641710 1876240 2235520 2626736 3001984 3283420 3752480 5253472 6566840 7504960 10506944 13133680 15009920 21013888 26267360 52534720 105069440