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70074730 = 25112291997
BaseRepresentation
bin1000010110101…
…00000101101010
311212212011110101
410023110011222
5120414342410
610541540014
71510424335
oct413240552
9155764411
1070074730
1136612200
121b57460a
131169684b
14944161c
156242d3a
hex42d416a

70074730 has 48 divisors (see below), whose sum is σ = 143496360. Its totient is φ = 24590720.

The previous prime is 70074691. The next prime is 70074749. The reversal of 70074730 is 3747007.

It can be written as a sum of positive squares in 4 ways, for example, as 36469521 + 33605209 = 6039^2 + 5797^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34092 + ... + 36088.

Almost surely, 270074730 is an apocalyptic number.

70074730 is an abundant number, since it is smaller than the sum of its proper divisors (73421630).

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

70074730 is a wasteful number, since it uses less digits than its factorization.

70074730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 28.

The square root of 70074730 is about 8371.0650457394. The cubic root of 70074730 is about 412.2751367033.

The spelling of 70074730 in words is "seventy million, seventy-four thousand, seven hundred thirty".

Divisors: 1 2 5 10 11 22 29 55 58 110 121 145 242 290 319 605 638 1210 1595 1997 3190 3509 3994 7018 9985 17545 19970 21967 35090 43934 57913 109835 115826 219670 241637 289565 483274 579130 637043 1208185 1274086 2416370 3185215 6370430 7007473 14014946 35037365 70074730