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105121585 = 5191106543
BaseRepresentation
bin1100100010000…
…00011100110001
321022210201201001
412101000130301
5203402342320
614233042001
72414342632
oct621003461
9238721631
10105121585
115437a448
122b256301
1318a17a2a
14dd65889
15936720a
hex6440731

105121585 has 8 divisors (see below), whose sum is σ = 132785280. Its totient is φ = 79671024.

The previous prime is 105121573. The next prime is 105121609. The reversal of 105121585 is 585121501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105121585 - 25 = 105121553 is a prime.

It is a super-2 number, since 2×1051215852 = 22101095265824450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553177 + ... + 553366.

It is an arithmetic number, because the mean of its divisors is an integer number (16598160).

Almost surely, 2105121585 is an apocalyptic number.

It is an amenable number.

105121585 is a deficient number, since it is larger than the sum of its proper divisors (27663695).

105121585 is a wasteful number, since it uses less digits than its factorization.

105121585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106567.

The product of its (nonzero) digits is 2000, while the sum is 28.

The square root of 105121585 is about 10252.8817900140. The cubic root of 105121585 is about 471.9514232901.

The spelling of 105121585 in words is "one hundred five million, one hundred twenty-one thousand, five hundred eighty-five".

Divisors: 1 5 19 95 1106543 5532715 21024317 105121585