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75069120 = 2635711171
BaseRepresentation
bin1000111100101…
…11011011000000
312020020220110210
410132113123000
5123204202440
611240554120
71601035260
oct436273300
9166226423
1075069120
11394135a5
1221182940
1312724bc9
149d817a0
1568cca80
hex47976c0

75069120 has 112 divisors (see below), whose sum is σ = 272418048. Its totient is φ = 17157120.

The previous prime is 75069119. The next prime is 75069121. The reversal of 75069120 is 2196057.

It is an interprime number because it is at equal distance from previous prime (75069119) and next prime (75069121).

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (75069121) by changing a digit.

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, 1135 + ... + 12305.

It is an arithmetic number, because the mean of its divisors is an integer number (2432304).

Almost surely, 275069120 is an apocalyptic number.

75069120 is a gapful number since it is divisible by the number (70) 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 75069120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136209024).

75069120 is an abundant number, since it is smaller than the sum of its proper divisors (197348928).

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

75069120 is a wasteful number, since it uses less digits than its factorization.

75069120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11198 (or 11188 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 75069120 is about 8664.2437638838. The cubic root of 75069120 is about 421.8458441305.

It can be divided in two parts, 750 and 69120, that multiplied together give a square (51840000 = 72002).

The spelling of 75069120 in words is "seventy-five million, sixty-nine thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 140 160 168 192 210 224 240 280 320 336 420 448 480 560 672 840 960 1120 1344 1680 2240 3360 6720 11171 22342 33513 44684 55855 67026 78197 89368 111710 134052 156394 167565 178736 223420 234591 268104 312788 335130 357472 390985 446840 469182 536208 625576 670260 714944 781970 893680 938364 1072416 1172955 1251152 1340520 1563940 1787360 1876728 2144832 2345910 2502304 2681040 3127880 3574720 3753456 4691820 5004608 5362080 6255760 7506912 9383640 10724160 12511520 15013824 18767280 25023040 37534560 75069120