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289014480 = 2435514867
BaseRepresentation
bin10001001110100…
…000001011010000
3202010211110100000
4101032200023100
51042441430410
644402330000
710106403546
oct2116401320
9663743300
10289014480
11139160947
1280959900
1347b527b1
142a553d96
151a58ddc0
hex113a02d0

289014480 has 120 divisors (see below), whose sum is σ = 1006623072. Its totient is φ = 77065344.

The previous prime is 289014463. The next prime is 289014487. The reversal of 289014480 is 84410982.

It is a tau number, because it is divible by the number of its divisors (120).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289014487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12007 + ... + 26873.

Almost surely, 2289014480 is an apocalyptic number.

289014480 is a gapful number since it is divisible by the number (20) 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 289014480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503311536).

289014480 is an abundant number, since it is smaller than the sum of its proper divisors (717608592).

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

289014480 is a wasteful number, since it uses less digits than its factorization.

289014480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14895 (or 14877 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 289014480 is about 17000.4258770185. The cubic root of 289014480 is about 661.1599436869.

The spelling of 289014480 in words is "two hundred eighty-nine million, fourteen 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 81 90 108 120 135 144 162 180 216 240 243 270 324 360 405 432 486 540 648 720 810 972 1080 1215 1296 1620 1944 2160 2430 3240 3888 4860 6480 9720 14867 19440 29734 44601 59468 74335 89202 118936 133803 148670 178404 223005 237872 267606 297340 356808 401409 446010 535212 594680 669015 713616 802818 892020 1070424 1189360 1204227 1338030 1605636 1784040 2007045 2140848 2408454 2676060 3211272 3568080 3612681 4014090 4816908 5352120 6021135 6422544 7225362 8028180 9633816 10704240 12042270 14450724 16056360 18063405 19267632 24084540 28901448 32112720 36126810 48169080 57802896 72253620 96338160 144507240 289014480