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102506041 = 119318731
BaseRepresentation
bin1100001110000…
…01111000111001
321010212211212001
412013001320321
5202220143131
614101021001
72353200301
oct607017071
9233784761
10102506041
1152953340
122a3b4761
1318310381
14d884601
158eec261
hex61c1e39

102506041 has 4 divisors (see below), whose sum is σ = 111824784. Its totient is φ = 93187300.

The previous prime is 102505999. The next prime is 102506111. The reversal of 102506041 is 140605201.

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.

It is a cyclic number.

It is not a de Polignac number, because 102506041 - 213 = 102497849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102506441) 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 3 ways as a sum of consecutive naturals, for example, 4659355 + ... + 4659376.

It is an arithmetic number, because the mean of its divisors is an integer number (27956196).

Almost surely, 2102506041 is an apocalyptic number.

102506041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102506041 is a deficient number, since it is larger than the sum of its proper divisors (9318743).

102506041 is an equidigital number, since it uses as much as digits as its factorization.

102506041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9318742.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 102506041 is about 10124.5267049873. The cubic root of 102506041 is about 468.0042749871.

The spelling of 102506041 in words is "one hundred two million, five hundred six thousand, forty-one".

Divisors: 1 11 9318731 102506041