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27838996 = 2217409397
BaseRepresentation
bin110101000110…
…0101000010100
31221101100220221
41222030220110
524111321441
62432404124
7455425153
oct152145024
957340827
1027838996
1114794939
1293a6644
1359c94a3
1439a959a
15269d8d1
hex1a8ca14

27838996 has 12 divisors (see below), whose sum is σ = 51584148. Its totient is φ = 13100672.

The previous prime is 27838981. The next prime is 27839027. The reversal of 27838996 is 69983872.

It can be written as a sum of positive squares in 2 ways, for example, as 23386896 + 4452100 = 4836^2 + 2110^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204631 + ... + 204766.

It is an arithmetic number, because the mean of its divisors is an integer number (4298679).

Almost surely, 227838996 is an apocalyptic number.

It is an amenable number.

27838996 is a deficient number, since it is larger than the sum of its proper divisors (23745152).

27838996 is a wasteful number, since it uses less digits than its factorization.

27838996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409418 (or 409416 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The square root of 27838996 is about 5276.2672411469. The cubic root of 27838996 is about 303.0757506837.

The spelling of 27838996 in words is "twenty-seven million, eight hundred thirty-eight thousand, nine hundred ninety-six".

Divisors: 1 2 4 17 34 68 409397 818794 1637588 6959749 13919498 27838996