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107056581 = 335685527
BaseRepresentation
bin1100110000110…
…00110111000101
321110110001000120
412120120313011
5204401302311
614342332153
72436652212
oct630306705
9243401016
10107056581
1155481215
122ba2a059
13192446b8
141030ab09
1595ea706
hex6618dc5

107056581 has 4 divisors (see below), whose sum is σ = 142742112. Its totient is φ = 71371052.

The previous prime is 107056567. The next prime is 107056589. The reversal of 107056581 is 185650701.

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, and also an emirpimes, since its reverse is a distinct semiprime: 185650701 = 361883567.

It is a cyclic number.

It is not a de Polignac number, because 107056581 - 221 = 104959429 is a prime.

It is a super-2 number, since 2×1070565812 = 22922223070819122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107056589) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17842761 + ... + 17842766.

It is an arithmetic number, because the mean of its divisors is an integer number (35685528).

Almost surely, 2107056581 is an apocalyptic number.

It is an amenable number.

107056581 is a deficient number, since it is larger than the sum of its proper divisors (35685531).

107056581 is an equidigital number, since it uses as much as digits as its factorization.

107056581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35685530.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 107056581 is about 10346.8150171925. The cubic root of 107056581 is about 474.8296061036.

The spelling of 107056581 in words is "one hundred seven million, fifty-six thousand, five hundred eighty-one".

Divisors: 1 3 35685527 107056581