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2008789380 = 2232513858457
BaseRepresentation
bin111011110111011…
…1011000110000100
312011222220001222200
41313232323012010
513103222230010
6531155154500
7100531266543
oct16756730604
95158801880
102008789380
11940a00214
124808a5a30
13260233b90
14150b0615a
15bb54bcc0
hex77bbb184

2008789380 has 72 divisors (see below), whose sum is σ = 6562052952. Its totient is φ = 494470656.

The previous prime is 2008789379. The next prime is 2008789403. The reversal of 2008789380 is 839878002.

It can be written as a sum of positive squares in 4 ways, for example, as 157552704 + 1851236676 = 12552^2 + 43026^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 426889 + ... + 431568.

Almost surely, 22008789380 is an apocalyptic number.

2008789380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2008789380 is an abundant number, since it is smaller than the sum of its proper divisors (4553263572).

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

2008789380 is a wasteful number, since it uses less digits than its factorization.

2008789380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858485 (or 858480 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 2008789380 is about 44819.5200777518. The cubic root of 2008789380 is about 1261.7640069303.

The spelling of 2008789380 in words is "two billion, eight million, seven hundred eighty-nine thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 858457 1716914 2575371 3433828 4292285 5150742 7726113 8584570 10301484 11159941 12876855 15452226 17169140 22319882 25753710 30904452 33479823 38630565 44639764 51507420 55799705 66959646 77261130 100439469 111599410 133919292 154522260 167399115 200878938 223198820 334798230 401757876 502197345 669596460 1004394690 2008789380