Search a number
-
+
102323665 = 5233112861
BaseRepresentation
bin1100001100101…
…01010111010001
321010112120200101
412012111113101
5202143324130
614053052401
72351510503
oct606252721
9233476611
10102323665
1152839314
122a327101
1318278362
14d837d73
158eb31ca
hex61955d1

102323665 has 16 divisors (see below), whose sum is σ = 128583936. Its totient is φ = 78020800.

The previous prime is 102323633. The next prime is 102323681. The reversal of 102323665 is 566323201.

102323665 is a nontrivial binomial coefficient, being equal to C(14306, 2).

It is not a de Polignac number, because 102323665 - 25 = 102323633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 34335 + ... + 37195.

It is an arithmetic number, because the mean of its divisors is an integer number (8036496).

Almost surely, 2102323665 is an apocalyptic number.

102323665 is the 14305-th triangular number and also the 7153-rd hexagonal number.

102323665 is the 4769-th centered nonagonal number.

It is an amenable number.

102323665 is a deficient number, since it is larger than the sum of its proper divisors (26260271).

102323665 is a wasteful number, since it uses less digits than its factorization.

102323665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3200.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 102323665 is about 10115.5160520855. The cubic root of 102323665 is about 467.7265566659.

Adding to 102323665 its reverse (566323201), we get a palindrome (668646866).

The spelling of 102323665 in words is "one hundred two million, three hundred twenty-three thousand, six hundred sixty-five".

Divisors: 1 5 23 115 311 1555 2861 7153 14305 35765 65803 329015 889771 4448855 20464733 102323665