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105090743 = 149705307
BaseRepresentation
bin1100100001110…
…00111010110111
321022202011101202
412100320322313
5203400400433
614232243115
72414154002
oct620707267
9238664352
10105090743
115435925a
122b24049b
1318a06994
14dd58539
15935cee8
hex6438eb7

105090743 has 4 divisors (see below), whose sum is σ = 105796200. Its totient is φ = 104385288.

The previous prime is 105090709. The next prime is 105090761. The reversal of 105090743 is 347090501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347090501 = 1399248099.

It is a cyclic number.

It is not a de Polignac number, because 105090743 - 28 = 105090487 is a prime.

It is a super-2 number, since 2×1050907432 = 22088128528584098, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105090763) 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, 352505 + ... + 352802.

It is an arithmetic number, because the mean of its divisors is an integer number (26449050).

Almost surely, 2105090743 is an apocalyptic number.

105090743 is a deficient number, since it is larger than the sum of its proper divisors (705457).

105090743 is an equidigital number, since it uses as much as digits as its factorization.

105090743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705456.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 105090743 is about 10251.3776147404. The cubic root of 105090743 is about 471.9052629334.

The spelling of 105090743 in words is "one hundred five million, ninety thousand, seven hundred forty-three".

Divisors: 1 149 705307 105090743