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20123100230 = 252012310023
BaseRepresentation
bin10010101111011011…
…100010010001000110
31220221102011102000112
4102233123202101012
5312203003201410
613124443513022
71311445346462
oct225733422106
956842142015
1020123100230
118596a69052
123a97228772
131b890489cc
14d8c7ab4a2
157cb985105
hex4af6e2446

20123100230 has 8 divisors (see below), whose sum is σ = 36221580432. Its totient is φ = 8049240088.

The previous prime is 20123100227. The next prime is 20123100247. The reversal of 20123100230 is 3200132102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 1006155002 + ... + 1006155021.

It is an arithmetic number, because the mean of its divisors is an integer number (4527697554).

Almost surely, 220123100230 is an apocalyptic number.

20123100230 is a deficient number, since it is larger than the sum of its proper divisors (16098480202).

20123100230 is a wasteful number, since it uses less digits than its factorization.

20123100230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012310030.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20123100230 its reverse (3200132102), we get a palindrome (23323232332).

The spelling of 20123100230 in words is "twenty billion, one hundred twenty-three million, one hundred thousand, two hundred thirty".

Divisors: 1 2 5 10 2012310023 4024620046 10061550115 20123100230