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105155093 = 671569479
BaseRepresentation
bin1100100010010…
…00101000010101
321022212102200002
412101020220111
5203404430333
614233501045
72414542421
oct621105025
9238772602
10105155093
11543a263a
122b271785
1318a2a064
14dd73b81
1593720e8
hex6448a15

105155093 has 4 divisors (see below), whose sum is σ = 106724640. Its totient is φ = 103585548.

The previous prime is 105155087. The next prime is 105155117. The reversal of 105155093 is 390551501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 390551501 = 563969259.

It is a cyclic number.

It is not a de Polignac number, because 105155093 - 24 = 105155077 is a prime.

It is a super-2 number, since 2×1051550932 = 22115187167677298, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105155003) 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, 784673 + ... + 784806.

It is an arithmetic number, because the mean of its divisors is an integer number (26681160).

Almost surely, 2105155093 is an apocalyptic number.

It is an amenable number.

105155093 is a deficient number, since it is larger than the sum of its proper divisors (1569547).

105155093 is an equidigital number, since it uses as much as digits as its factorization.

105155093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569546.

The product of its (nonzero) digits is 3375, while the sum is 29.

The square root of 105155093 is about 10254.5157369814. The cubic root of 105155093 is about 472.0015635422.

The spelling of 105155093 in words is "one hundred five million, one hundred fifty-five thousand, ninety-three".

Divisors: 1 67 1569479 105155093