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102930911 = 234475257
BaseRepresentation
bin1100010001010…
…01100111011111
321011200102122222
412020221213133
5202322242121
614114055555
72356620056
oct610514737
9234612588
10102930911
1153113576
122a57a5bb
131842b885
14d95539d
1590830ab
hex62299df

102930911 has 4 divisors (see below), whose sum is σ = 107406192. Its totient is φ = 98455632.

The previous prime is 102930853. The next prime is 102930941. The reversal of 102930911 is 119039201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119039201 = 698317047.

It is a cyclic number.

It is not a de Polignac number, because 102930911 - 218 = 102668767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102930941) 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, 2237606 + ... + 2237651.

It is an arithmetic number, because the mean of its divisors is an integer number (26851548).

Almost surely, 2102930911 is an apocalyptic number.

102930911 is a deficient number, since it is larger than the sum of its proper divisors (4475281).

102930911 is an equidigital number, since it uses as much as digits as its factorization.

102930911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475280.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 102930911 is about 10145.4872233915. The cubic root of 102930911 is about 468.6499829039.

The spelling of 102930911 in words is "one hundred two million, nine hundred thirty thousand, nine hundred eleven".

Divisors: 1 23 4475257 102930911