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2154314085 = 357113750411
BaseRepresentation
bin1000000001101000…
…0011100101100101
312120010201111100120
42000122003211211
513403001022320
6553434232153
7104246240040
oct20032034545
95503644316
102154314085
11a06066070
12501585659
13284426a81
14166187c57
15c91e5440
hex80683965

2154314085 has 64 divisors (see below), whose sum is σ = 4413671424. Its totient is φ = 871084800.

The previous prime is 2154314033. The next prime is 2154314111. The reversal of 2154314085 is 5804134512.

It is not a de Polignac number, because 2154314085 - 27 = 2154313957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17530 + ... + 67940.

It is an arithmetic number, because the mean of its divisors is an integer number (68963616).

Almost surely, 22154314085 is an apocalyptic number.

It is an amenable number.

2154314085 is an abundant number, since it is smaller than the sum of its proper divisors (2259357339).

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

2154314085 is a wasteful number, since it uses less digits than its factorization.

2154314085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50474.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 2154314085 is about 46414.5891396229. The cubic root of 2154314085 is about 1291.5255642928.

Adding to 2154314085 its reverse (5804134512), we get a palindrome (7958448597).

The spelling of 2154314085 in words is "two billion, one hundred fifty-four million, three hundred fourteen thousand, eighty-five".

Divisors: 1 3 5 7 11 15 21 33 35 37 55 77 105 111 165 185 231 259 385 407 555 777 1155 1221 1295 2035 2849 3885 6105 8547 14245 42735 50411 151233 252055 352877 554521 756165 1058631 1663563 1764385 1865207 2772605 3881647 5293155 5595621 8317815 9326035 11644941 13056449 19408235 20517277 27978105 39169347 58224705 61551831 65282245 102586385 143620939 195846735 307759155 430862817 718104695 2154314085