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20303102023 = 171996765003
BaseRepresentation
bin10010111010001010…
…001100000001000111
31221101221212110001121
4102322022030001013
5313040043231043
613154353534411
71316062343161
oct227212140107
957357773047
1020303102023
118679632066
123b27574407
131bb7420649
14da8665931
157dc68dded
hex4ba28c047

20303102023 has 16 divisors (see below), whose sum is σ = 22652593920. Its totient is φ = 18084076416.

The previous prime is 20303102003. The next prime is 20303102059. The reversal of 20303102023 is 32020130302.

It is a cyclic number.

It is not a de Polignac number, because 20303102023 - 225 = 20269547591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20303101988 and 20303102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303102003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279840 + ... + 344842.

It is an arithmetic number, because the mean of its divisors is an integer number (1415787120).

Almost surely, 220303102023 is an apocalyptic number.

20303102023 is a deficient number, since it is larger than the sum of its proper divisors (2349491897).

20303102023 is a wasteful number, since it uses less digits than its factorization.

20303102023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66006.

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

Adding to 20303102023 its reverse (32020130302), we get a palindrome (52323232325).

The spelling of 20303102023 in words is "twenty billion, three hundred three million, one hundred two thousand, twenty-three".

Divisors: 1 17 19 323 967 16439 18373 65003 312341 1105051 1235057 20995969 62857901 1068584317 1194300119 20303102023