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106102649 = 571185819
BaseRepresentation
bin1100101001011…
…11111101111001
321101122120110202
412110233331321
5204130241044
614310051545
72425600112
oct624577571
9241576422
10106102649
115498a544
122b649bb5
1318c9c443
141013d209
1594acc4e
hex652ff79

106102649 has 4 divisors (see below), whose sum is σ = 106289040. Its totient is φ = 105916260.

The previous prime is 106102637. The next prime is 106102651. The reversal of 106102649 is 946201601.

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: 946201601 = 2933229357.

It is a cyclic number.

It is not a de Polignac number, because 106102649 - 28 = 106102393 is a prime.

It is a super-2 number, since 2×1061026492 = 22515544249634402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106102679) 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, 92339 + ... + 93480.

It is an arithmetic number, because the mean of its divisors is an integer number (26572260).

Almost surely, 2106102649 is an apocalyptic number.

It is an amenable number.

106102649 is a deficient number, since it is larger than the sum of its proper divisors (186391).

106102649 is an equidigital number, since it uses as much as digits as its factorization.

106102649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186390.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 106102649 is about 10300.6140108248. The cubic root of 106102649 is about 473.4150668331.

The spelling of 106102649 in words is "one hundred six million, one hundred two thousand, six hundred forty-nine".

Divisors: 1 571 185819 106102649