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8970480 = 243354153
BaseRepresentation
bin100010001110…
…000011110000
3121212202012000
4202032003300
54244023410
6520134000
7136151001
oct42160360
917782160
108970480
115077722
123007300
131b2109c
1412971a8
15bc2dc0
hex88e0f0

8970480 has 80 divisors (see below), whose sum is σ = 30905760. Its totient is φ = 2391552.

The previous prime is 8970473. The next prime is 8970491. The reversal of 8970480 is 840798.

8970480 = T433 + T434 + ... + T512.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×89704802 = 160939022860800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84 + ... + 4236.

It is an arithmetic number, because the mean of its divisors is an integer number (386322).

Almost surely, 28970480 is an apocalyptic number.

8970480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8970480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15452880).

8970480 is an abundant number, since it is smaller than the sum of its proper divisors (21935280).

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

8970480 is a wasteful number, since it uses less digits than its factorization.

8970480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175 (or 4163 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8970480 is about 2995.0759589700. The cubic root of 8970480 is about 207.7807107045.

The spelling of 8970480 in words is "eight million, nine hundred seventy thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 540 720 1080 2160 4153 8306 12459 16612 20765 24918 33224 37377 41530 49836 62295 66448 74754 83060 99672 112131 124590 149508 166120 186885 199344 224262 249180 299016 332240 373770 448524 498360 560655 598032 747540 897048 996720 1121310 1495080 1794096 2242620 2990160 4485240 8970480