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53854681 = 367146743
BaseRepresentation
bin1100110101110…
…0000111011001
310202100002201211
43031130013121
5102241322211
65202143121
71222520506
oct315340731
9122302654
1053854681
1128443901
1216051aa1
13b207a9a
14721c4ad
154adbe21
hex335c1d9

53854681 has 4 divisors (see below), whose sum is σ = 54001792. Its totient is φ = 53707572.

The previous prime is 53854663. The next prime is 53854699. The reversal of 53854681 is 18645835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (53854663) and next prime (53854699).

It is a cyclic number.

It is not a de Polignac number, because 53854681 - 27 = 53854553 is a prime.

It is a super-2 number, since 2×538546812 = 5800653331223522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53854631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73005 + ... + 73738.

It is an arithmetic number, because the mean of its divisors is an integer number (13500448).

Almost surely, 253854681 is an apocalyptic number.

It is an amenable number.

53854681 is a deficient number, since it is larger than the sum of its proper divisors (147111).

53854681 is a wasteful number, since it uses less digits than its factorization.

53854681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147110.

The product of its digits is 115200, while the sum is 40.

The square root of 53854681 is about 7338.5748616472. The cubic root of 53854681 is about 377.6369539484.

The spelling of 53854681 in words is "fifty-three million, eight hundred fifty-four thousand, six hundred eighty-one".

Divisors: 1 367 146743 53854681