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70668800 = 29525521
BaseRepresentation
bin1000011011001…
…01001000000000
311220222100100222
410031211020000
5121042400200
611002402212
71515450326
oct415451000
9156870328
1070668800
1136988574
121b800368
1311844077
149557d16
15630dd85
hex4365200

70668800 has 60 divisors (see below), whose sum is σ = 175119186. Its totient is φ = 28262400.

The previous prime is 70668797. The next prime is 70668817. The reversal of 70668800 is 886607.

It can be written as a sum of positive squares in 3 ways, for example, as 44943616 + 25725184 = 6704^2 + 5072^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10040 + ... + 15560.

Almost surely, 270668800 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 70668800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87559593).

70668800 is an abundant number, since it is smaller than the sum of its proper divisors (104450386).

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

70668800 is an equidigital number, since it uses as much as digits as its factorization.

70668800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5549 (or 5528 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 70668800 is about 8406.4736959084. The cubic root of 70668800 is about 413.4369031709.

The spelling of 70668800 in words is "seventy million, six hundred sixty-eight thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 320 400 512 640 800 1280 1600 2560 3200 5521 6400 11042 12800 22084 27605 44168 55210 88336 110420 138025 176672 220840 276050 353344 441680 552100 706688 883360 1104200 1413376 1766720 2208400 2826752 3533440 4416800 7066880 8833600 14133760 17667200 35334400 70668800