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70300080 = 24325251389
BaseRepresentation
bin1000011000010…
…11000110110000
311220021121120200
410030023012300
5120444100310
610550435200
71512353334
oct414130660
9156247520
1070300080
1136756544
121b662b00
13117452a6
14949d7c4
1562899c0
hex430b1b0

70300080 has 120 divisors (see below), whose sum is σ = 237641040. Its totient is φ = 18624000.

The previous prime is 70300079. The next prime is 70300099. The reversal of 70300080 is 8000307.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180526 + ... + 180914.

It is an arithmetic number, because the mean of its divisors is an integer number (1980342).

Almost surely, 270300080 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 70300080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118820520).

70300080 is an abundant number, since it is smaller than the sum of its proper divisors (167340960).

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

70300080 is a wasteful number, since it uses less digits than its factorization.

70300080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 650 counting only the distinct ones).

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

The square root of 70300080 is about 8384.5142972029. The cubic root of 70300080 is about 412.7166024962.

Adding to 70300080 its reverse (8000307), we get a palindrome (78300387).

The spelling of 70300080 in words is "seventy million, three hundred thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 251 360 389 502 720 753 778 1004 1167 1255 1506 1556 1945 2008 2259 2334 2510 3012 3112 3501 3765 3890 4016 4518 4668 5020 5835 6024 6224 7002 7530 7780 9036 9336 10040 11295 11670 12048 14004 15060 15560 17505 18072 18672 20080 22590 23340 28008 30120 31120 35010 36144 45180 46680 56016 60240 70020 90360 93360 97639 140040 180720 195278 280080 292917 390556 488195 585834 781112 878751 976390 1171668 1464585 1562224 1757502 1952780 2343336 2929170 3515004 3905560 4393755 4686672 5858340 7030008 7811120 8787510 11716680 14060016 17575020 23433360 35150040 70300080