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105071897 = 737405683
BaseRepresentation
bin1100100001101…
…00010100011001
321022201012112202
412100310110121
5203344300042
614232015545
72414045030
oct620642431
9238635482
10105071897
1154346087
122b2315b5
13189cb228
14dd51717
159357632
hex6434519

105071897 has 8 divisors (see below), whose sum is σ = 123327936. Its totient is φ = 87627312.

The previous prime is 105071873. The next prime is 105071921. The reversal of 105071897 is 798170501.

It is an interprime number because it is at equal distance from previous prime (105071873) and next prime (105071921).

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 105071897 - 212 = 105067801 is a prime.

It is a super-2 number, since 2×1050718972 = 22080207078357218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105071897.

It is not an unprimeable number, because it can be changed into a prime (105071867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202583 + ... + 203100.

It is an arithmetic number, because the mean of its divisors is an integer number (15415992).

Almost surely, 2105071897 is an apocalyptic number.

It is an amenable number.

105071897 is a deficient number, since it is larger than the sum of its proper divisors (18256039).

105071897 is an equidigital number, since it uses as much as digits as its factorization.

105071897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405727.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 105071897 is about 10250.4583799945. The cubic root of 105071897 is about 471.8770522081.

The spelling of 105071897 in words is "one hundred five million, seventy-one thousand, eight hundred ninety-seven".

Divisors: 1 7 37 259 405683 2839781 15010271 105071897