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20201231230 = 252020123123
BaseRepresentation
bin10010110100000101…
…100101001101111110
31221010212011212121021
4102310011211031332
5312333003344410
613140314254354
71313414426605
oct226405451576
957125155537
1020201231230
118627083024
123ab94273ba
131b9c2a347b
14d98d08a3c
157d3769eda
hex4b416537e

20201231230 has 8 divisors (see below), whose sum is σ = 36362216232. Its totient is φ = 8080492488.

The previous prime is 20201231227. The next prime is 20201231287. The reversal of 20201231230 is 3213210202.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010061552 + ... + 1010061571.

It is an arithmetic number, because the mean of its divisors is an integer number (4545277029).

Almost surely, 220201231230 is an apocalyptic number.

20201231230 is a deficient number, since it is larger than the sum of its proper divisors (16160985002).

20201231230 is a wasteful number, since it uses less digits than its factorization.

20201231230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020123130.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20201231230 its reverse (3213210202), we get a palindrome (23414441432).

The spelling of 20201231230 in words is "twenty billion, two hundred one million, two hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 2020123123 4040246246 10100615615 20201231230