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20210102030 = 252969690007
BaseRepresentation
bin10010110100100111…
…011010111100001110
31221011110212120001102
4102310213122330032
5312342241231110
613141232343102
71313553014156
oct226447327416
957143776042
1020210102030
118631091868
123b003a4a92
131ba108b071
14d9a177766
157d441d5a5
hex4b49daf0e

20210102030 has 16 divisors (see below), whose sum is σ = 37632604320. Its totient is φ = 7805280672.

The previous prime is 20210102023. The next prime is 20210102119. The reversal of 20210102030 is 3020101202.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 34844714 + ... + 34845293.

It is an arithmetic number, because the mean of its divisors is an integer number (2352037770).

Almost surely, 220210102030 is an apocalyptic number.

20210102030 is a deficient number, since it is larger than the sum of its proper divisors (17422502290).

20210102030 is a wasteful number, since it uses less digits than its factorization.

20210102030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69690043.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20210102030 its reverse (3020101202), we get a palindrome (23230203232).

The spelling of 20210102030 in words is "twenty billion, two hundred ten million, one hundred two thousand, thirty".

Divisors: 1 2 5 10 29 58 145 290 69690007 139380014 348450035 696900070 2021010203 4042020406 10105051015 20210102030