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105714281 = 611733021
BaseRepresentation
bin1100100110100…
…01001001101001
321100220211201202
412103101021221
5204030324111
614253453545
72422361621
oct623211151
9240824652
10105714281
1154744782
122b4a12b5
1318b9473a
141007b881
159432b3b
hex64d1269

105714281 has 4 divisors (see below), whose sum is σ = 107447364. Its totient is φ = 103981200.

The previous prime is 105714239. The next prime is 105714299. The reversal of 105714281 is 182417501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 182417501 = 726059643.

It can be written as a sum of positive squares in 2 ways, for example, as 39438400 + 66275881 = 6280^2 + 8141^2 .

It is a cyclic number.

It is not a de Polignac number, because 105714281 - 226 = 38605417 is a prime.

It is a super-2 number, since 2×1057142812 = 22351018414693922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105714221) 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, 866450 + ... + 866571.

It is an arithmetic number, because the mean of its divisors is an integer number (26861841).

Almost surely, 2105714281 is an apocalyptic number.

It is an amenable number.

105714281 is a deficient number, since it is larger than the sum of its proper divisors (1733083).

105714281 is an equidigital number, since it uses as much as digits as its factorization.

105714281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733082.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 105714281 is about 10281.7450367143. The cubic root of 105714281 is about 472.8367462204.

The spelling of 105714281 in words is "one hundred five million, seven hundred fourteen thousand, two hundred eighty-one".

Divisors: 1 61 1733021 105714281