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20210020230 = 235673667341
BaseRepresentation
bin10010110100100111…
…000110111110000110
31221011110201101211210
4102310213012332012
5312342231121410
613141230512250
71313552223531
oct226447067606
957143641753
1020210020230
118631036364
123b00365686
131ba105ca6a
14d9a155a18
157d4404220
hex4b49c6f86

20210020230 has 16 divisors (see below), whose sum is σ = 48504048624. Its totient is φ = 5389338720.

The previous prime is 20210020169. The next prime is 20210020249. The reversal of 20210020230 is 3202001202.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336833641 + ... + 336833700.

It is an arithmetic number, because the mean of its divisors is an integer number (3031503039).

Almost surely, 220210020230 is an apocalyptic number.

20210020230 is an abundant number, since it is smaller than the sum of its proper divisors (28294028394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20210020230 is a wasteful number, since it uses less digits than its factorization.

20210020230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673667351.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20210020230 its reverse (3202001202), we get a palindrome (23412021432).

The spelling of 20210020230 in words is "twenty billion, two hundred ten million, twenty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 673667341 1347334682 2021002023 3368336705 4042004046 6736673410 10105010115 20210020230