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23100203203 = 7112313043593
BaseRepresentation
bin10101100000111000…
…010010000011000011
32012121220002220112121
4111200320102003003
5334302123000303
614340113305111
71445305326130
oct254070220303
965556086477
1023100203203
11988450a630
124588265197
132241a742bc
141191d33587
159030049bd
hex560e120c3

23100203203 has 16 divisors (see below), whose sum is σ = 30052440576. Its totient is φ = 17217541440.

The previous prime is 23100203197. The next prime is 23100203221. The reversal of 23100203203 is 30230200132.

It is a de Polignac number, because none of the positive numbers 2k-23100203203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23100203603) 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 15 ways as a sum of consecutive naturals, for example, 6520026 + ... + 6523567.

It is an arithmetic number, because the mean of its divisors is an integer number (1878277536).

Almost surely, 223100203203 is an apocalyptic number.

23100203203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23100203203 is a deficient number, since it is larger than the sum of its proper divisors (6952237373).

23100203203 is a wasteful number, since it uses less digits than its factorization.

23100203203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13043634.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 23100203203 its reverse (30230200132), we get a palindrome (53330403335).

The spelling of 23100203203 in words is "twenty-three billion, one hundred million, two hundred three thousand, two hundred three".

Divisors: 1 7 11 23 77 161 253 1771 13043593 91305151 143479523 300002639 1004356661 2100018473 3300029029 23100203203