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105731395 = 5711274627
BaseRepresentation
bin1100100110101…
…01010101000011
321100221201012121
412103111111003
5204031401040
614254105111
72422462540
oct623252503
9240851177
10105731395
1154756620
122b4ab197
1318b9c473
1410083bc7
159437c4a
hex64d5543

105731395 has 16 divisors (see below), whose sum is σ = 158185728. Its totient is φ = 65910240.

The previous prime is 105731393. The next prime is 105731407. The reversal of 105731395 is 593137501.

It is not a de Polignac number, because 105731395 - 21 = 105731393 is a prime.

It is a super-2 number, since 2×1057313952 = 22358255777292050, 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 105731395.

It is not an unprimeable number, because it can be changed into a prime (105731393) 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 15 ways as a sum of consecutive naturals, for example, 136929 + ... + 137698.

It is an arithmetic number, because the mean of its divisors is an integer number (9886608).

Almost surely, 2105731395 is an apocalyptic number.

105731395 is a deficient number, since it is larger than the sum of its proper divisors (52454333).

105731395 is a wasteful number, since it uses less digits than its factorization.

105731395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274650.

The product of its (nonzero) digits is 14175, while the sum is 34.

The square root of 105731395 is about 10282.5772547548. The cubic root of 105731395 is about 472.8622605639.

Adding to 105731395 its reverse (593137501), we get a palindrome (698868896).

The spelling of 105731395 in words is "one hundred five million, seven hundred thirty-one thousand, three hundred ninety-five".

Divisors: 1 5 7 11 35 55 77 385 274627 1373135 1922389 3020897 9611945 15104485 21146279 105731395