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70300800 = 2732522441
BaseRepresentation
bin1000011000010…
…11010010000000
311220021122120100
410030023102000
5120444111200
610550442400
71512355413
oct414132200
9156248510
1070300800
1136757039
121b663400
131174570b
14949db7a
156289d00
hex430b480

70300800 has 144 divisors (see below), whose sum is σ = 250952130. Its totient is φ = 18739200.

The previous prime is 70300787. The next prime is 70300807. The reversal of 70300800 is 800307.

70300800 = T2359 + T2360 + ... + T2383.

It can be written as a sum of positive squares in 3 ways, for example, as 36288576 + 34012224 = 6024^2 + 5832^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (70300807) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27580 + ... + 30020.

Almost surely, 270300800 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 70300800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125476065).

70300800 is an abundant number, since it is smaller than the sum of its proper divisors (180651330).

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

70300800 is a wasteful number, since it uses less digits than its factorization.

70300800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471 (or 2451 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 70300800 is about 8384.5572333904. The cubic root of 70300800 is about 412.7180114796.

The spelling of 70300800 in words is "seventy million, three hundred thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 64 72 75 80 90 96 100 120 128 144 150 160 180 192 200 225 240 288 300 320 360 384 400 450 480 576 600 640 720 800 900 960 1152 1200 1440 1600 1800 1920 2400 2441 2880 3200 3600 4800 4882 5760 7200 7323 9600 9764 12205 14400 14646 19528 21969 24410 28800 29292 36615 39056 43938 48820 58584 61025 73230 78112 87876 97640 109845 117168 122050 146460 156224 175752 183075 195280 219690 234336 244100 292920 312448 351504 366150 390560 439380 468672 488200 549225 585840 703008 732300 781120 878760 937344 976400 1098450 1171680 1406016 1464600 1562240 1757520 1952800 2196900 2343360 2812032 2929200 3515040 3905600 4393800 4686720 5858400 7030080 7811200 8787600 11716800 14060160 17575200 23433600 35150400 70300800