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20210210010 = 2325397565637
BaseRepresentation
bin10010110100100111…
…110101010011011010
31221011111002001011200
4102310213311103122
5312342303210020
613141234535030
71313553644034
oct226447652332
957144061150
1020210210010
118631155a01
123b00437476
131ba10c8263
14d9a1a4c54
157d4440590
hex4b49f54da

20210210010 has 48 divisors (see below), whose sum is σ = 52678998216. Its totient is φ = 5375804544.

The previous prime is 20210209973. The next prime is 20210210063. The reversal of 20210210010 is 1001201202.

It can be written as a sum of positive squares in 4 ways, for example, as 18744621921 + 1465588089 = 136911^2 + 38283^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20210209974 and 20210210001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247089 + ... + 318548.

Almost surely, 220210210010 is an apocalyptic number.

20210210010 is an abundant number, since it is smaller than the sum of its proper divisors (32468788206).

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

20210210010 is a wasteful number, since it uses less digits than its factorization.

20210210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566047 (or 566044 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20210210010 its reverse (1001201202), we get a palindrome (21211411212).

The spelling of 20210210010 in words is "twenty billion, two hundred ten million, two hundred ten thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 397 794 1191 1985 2382 3573 3970 5955 7146 11910 17865 35730 565637 1131274 1696911 2828185 3393822 5090733 5656370 8484555 10181466 16969110 25453665 50907330 224557889 449115778 673673667 1122789445 1347347334 2021021001 2245578890 3368368335 4042042002 6736736670 10105105005 20210210010