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989308070 = 255313114249
BaseRepresentation
bin111010111101111…
…010010010100110
32112221120001112122
4322331322102212
54011230324240
6242100145542
733341660042
oct7275722246
92487501478
10989308070
11468490883
122373982b2
13129c656ba
1495567022
155bcbd4b5
hex3af7a4a6

989308070 has 32 divisors (see below), whose sum is σ = 1828332000. Its totient is φ = 385265920.

The previous prime is 989308063. The next prime is 989308079. The reversal of 989308070 is 70803989.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989308079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62306 + ... + 76554.

It is an arithmetic number, because the mean of its divisors is an integer number (57135375).

Almost surely, 2989308070 is an apocalyptic number.

989308070 is a deficient number, since it is larger than the sum of its proper divisors (839023930).

989308070 is a wasteful number, since it uses less digits than its factorization.

989308070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14440.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 989308070 is about 31453.2680337036. The cubic root of 989308070 is about 996.4232454126.

The spelling of 989308070 in words is "nine hundred eighty-nine million, three hundred eight thousand, seventy".

Divisors: 1 2 5 10 53 106 131 262 265 530 655 1310 6943 13886 14249 28498 34715 69430 71245 142490 755197 1510394 1866619 3733238 3775985 7551970 9333095 18666190 98930807 197861614 494654035 989308070