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105420283 = 296935507
BaseRepresentation
bin1100100100010…
…01010111111011
321100100220102221
412102021113323
5203441422113
614243304511
72420025523
oct622112773
9240326387
10105420283
1154563901
122b37b137
1318ac0987
1410002683
1593c598d
hex64895fb

105420283 has 4 divisors (see below), whose sum is σ = 105458760. Its totient is φ = 105381808.

The previous prime is 105420277. The next prime is 105420311. The reversal of 105420283 is 382024501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 382024501 = 3112323371.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105420283 is a prime.

It is a super-2 number, since 2×1054202832 = 22226872135600178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105420223) 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, 14785 + ... + 20722.

It is an arithmetic number, because the mean of its divisors is an integer number (26364690).

Almost surely, 2105420283 is an apocalyptic number.

105420283 is a deficient number, since it is larger than the sum of its proper divisors (38477).

105420283 is an equidigital number, since it uses as much as digits as its factorization.

105420283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38476.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 105420283 is about 10267.4379959170. The cubic root of 105420283 is about 472.3980097701.

Adding to 105420283 its reverse (382024501), we get a palindrome (487444784).

The spelling of 105420283 in words is "one hundred five million, four hundred twenty thousand, two hundred eighty-three".

Divisors: 1 2969 35507 105420283