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70470800 = 2452414297
BaseRepresentation
bin1000011001101…
…00110010010000
311220121021202122
410030310302100
5121020031200
610554233412
71513664141
oct414646220
9156537678
1070470800
1136862834
121b725868
13117a4bca
149505ac8
1562c0385
hex4334c90

70470800 has 60 divisors (see below), whose sum is σ = 173475876. Its totient is φ = 27494400.

The previous prime is 70470793. The next prime is 70470809. The reversal of 70470800 is 807407.

It can be written as a sum of positive squares in 6 ways, for example, as 10995856 + 59474944 = 3316^2 + 7712^2 .

It is a super-2 number, since 2×704708002 = 9932267305280000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70470800.

It is not an unprimeable number, because it can be changed into a prime (70470809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14252 + ... + 18548.

Almost surely, 270470800 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 70470800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86737938).

70470800 is an abundant number, since it is smaller than the sum of its proper divisors (103005076).

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

70470800 is a wasteful number, since it uses less digits than its factorization.

70470800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356 (or 4345 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 70470800 is about 8394.6887970907. The cubic root of 70470800 is about 413.0504191856.

The spelling of 70470800 in words is "seventy million, four hundred seventy thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 41 50 80 82 100 164 200 205 328 400 410 656 820 1025 1640 2050 3280 4100 4297 8200 8594 16400 17188 21485 34376 42970 68752 85940 107425 171880 176177 214850 343760 352354 429700 704708 859400 880885 1409416 1718800 1761770 2818832 3523540 4404425 7047080 8808850 14094160 17617700 35235400 70470800