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109242511 = 728112749
BaseRepresentation
bin1101000001011…
…10100010001111
321121120002112221
412200232202033
5210431230021
614501240211
72464355200
oct640564217
9247502487
10109242511
1156734574
1230703067
131982b651
14107195a7
1598cd241
hex682e88f

109242511 has 12 divisors (see below), whose sum is σ = 127281000. Its totient is φ = 93486960.

The previous prime is 109242503. The next prime is 109242559. The reversal of 109242511 is 115242901.

It is a happy number.

It is not a de Polignac number, because 109242511 - 23 = 109242503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109212511) 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 11 ways as a sum of consecutive naturals, for example, 38365 + ... + 41113.

It is an arithmetic number, because the mean of its divisors is an integer number (10606750).

Almost surely, 2109242511 is an apocalyptic number.

109242511 is a deficient number, since it is larger than the sum of its proper divisors (18038489).

109242511 is an equidigital number, since it uses as much as digits as its factorization.

109242511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574 (or 3567 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 109242511 is about 10451.9142265903. The cubic root of 109242511 is about 478.0396187466.

The spelling of 109242511 in words is "one hundred nine million, two hundred forty-two thousand, five hundred eleven".

Divisors: 1 7 49 811 2749 5677 19243 39739 134701 2229439 15606073 109242511