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20210212210 = 252131948391
BaseRepresentation
bin10010110100100111…
…110101110101110010
31221011111002011012011
4102310213311311302
5312342303242320
613141234553134
71313553653326
oct226447656562
957144064164
1020210212210
118631157621
123b004387aa
131ba10c9266
14d9a1a5986
157d444105a
hex4b49f5d72

20210212210 has 16 divisors (see below), whose sum is σ = 36395491392. Its totient is φ = 8080282800.

The previous prime is 20210212177. The next prime is 20210212223. The reversal of 20210212210 is 1221201202.

It is a happy 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, 452886 + ... + 495505.

It is an arithmetic number, because the mean of its divisors is an integer number (2274718212).

Almost surely, 220210212210 is an apocalyptic number.

20210212210 is a deficient number, since it is larger than the sum of its proper divisors (16185279182).

20210212210 is a wasteful number, since it uses less digits than its factorization.

20210212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950529.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20210212210 its reverse (1221201202), we get a palindrome (21431413412).

The spelling of 20210212210 in words is "twenty billion, two hundred ten million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 2131 4262 10655 21310 948391 1896782 4741955 9483910 2021021221 4042042442 10105106105 20210212210