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278030134 = 22931239647
BaseRepresentation
bin10000100100100…
…110011100110110
3201101011101122101
4100210212130312
51032133431014
643331052314
76614134324
oct2044463466
9641141571
10278030134
11132a39178
127914109a
13457a7b95
1428cd4d14
151961e474
hex10926736

278030134 has 32 divisors (see below), whose sum is σ = 447897600. Its totient is φ = 129148320.

The previous prime is 278030119. The next prime is 278030147. The reversal of 278030134 is 431030872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429399 + ... + 430045.

It is an arithmetic number, because the mean of its divisors is an integer number (13996800).

Almost surely, 2278030134 is an apocalyptic number.

278030134 is a deficient number, since it is larger than the sum of its proper divisors (169867466).

278030134 is a wasteful number, since it uses less digits than its factorization.

278030134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 278030134 is about 16674.2356346550. The cubic root of 278030134 is about 652.6754686315.

The spelling of 278030134 in words is "two hundred seventy-eight million, thirty thousand, one hundred thirty-four".

Divisors: 1 2 29 31 58 62 239 478 647 899 1294 1798 6931 7409 13862 14818 18763 20057 37526 40114 154633 214861 309266 429722 581653 1163306 4484357 4793623 8968714 9587246 139015067 278030134