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2185313038 = 22941918971
BaseRepresentation
bin1000001001000001…
…0011101100001110
312122022001101220221
42002100103230032
513433420004123
61000502501554
7105103566016
oct20220235416
95568041827
102185313038
11a21609037
1250ba348ba
1328a98b64c
1416a336c46
15cbcba25d
hex82413b0e

2185313038 has 16 divisors (see below), whose sum is σ = 3473714160. Its totient is φ = 1029246400.

The previous prime is 2185313033. The next prime is 2185313041. The reversal of 2185313038 is 8303135812.

It is a junction number, because it is equal to n+sod(n) for n = 2185312994 and 2185313012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185313033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457108 + ... + 461863.

It is an arithmetic number, because the mean of its divisors is an integer number (217107135).

Almost surely, 22185313038 is an apocalyptic number.

2185313038 is a deficient number, since it is larger than the sum of its proper divisors (1288401122).

2185313038 is a wasteful number, since it uses less digits than its factorization.

2185313038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919043.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2185313038 is about 46747.3318810817. The cubic root of 2185313038 is about 1297.6907797972.

The spelling of 2185313038 in words is "two billion, one hundred eighty-five million, three hundred thirteen thousand, thirty-eight".

Divisors: 1 2 29 41 58 82 1189 2378 918971 1837942 26650159 37677811 53300318 75355622 1092656519 2185313038