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23132103209 = 157147338237
BaseRepresentation
bin10101100010110001…
…111110001000101001
32012201010010121010022
4111202301332020221
5334333304300314
614343213130225
71446143430065
oct254261761051
965633117108
1023132103209
1198a0518576
124596a89975
132248563047
141196278aa5
15905c0678e
hex562c7e229

23132103209 has 4 divisors (see below), whose sum is σ = 23279441604. Its totient is φ = 22984764816.

The previous prime is 23132103193. The next prime is 23132103217. The reversal of 23132103209 is 90230123132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12285505600 + 10846597609 = 110840^2 + 104147^2 .

It is a cyclic number.

It is not a de Polignac number, because 23132103209 - 24 = 23132103193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23132103259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73668962 + ... + 73669275.

It is an arithmetic number, because the mean of its divisors is an integer number (5819860401).

Almost surely, 223132103209 is an apocalyptic number.

It is an amenable number.

23132103209 is a deficient number, since it is larger than the sum of its proper divisors (147338395).

23132103209 is a wasteful number, since it uses less digits than its factorization.

23132103209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147338394.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 23132103209 in words is "twenty-three billion, one hundred thirty-two million, one hundred three thousand, two hundred nine".

Divisors: 1 157 147338237 23132103209