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20212020210 = 235673734007
BaseRepresentation
bin10010110100101110…
…101111001111110010
31221011121111000022010
4102310232233033302
5312343234121320
613141341423350
71313605223424
oct226456571762
957147430263
1020212020210
118632181a38
123b00b6ab56
131ba15b0195
14d9a516814
157d469bae0
hex4b4baf3f2

20212020210 has 16 divisors (see below), whose sum is σ = 48508848576. Its totient is φ = 5389872048.

The previous prime is 20212020133. The next prime is 20212020217. The reversal of 20212020210 is 1202021202.

It is not an unprimeable number, because it can be changed into a prime (20212020217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336866974 + ... + 336867033.

It is an arithmetic number, because the mean of its divisors is an integer number (3031803036).

Almost surely, 220212020210 is an apocalyptic number.

20212020210 is an abundant number, since it is smaller than the sum of its proper divisors (28296828366).

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

20212020210 is a wasteful number, since it uses less digits than its factorization.

20212020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673734017.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20212020210 its reverse (1202021202), we get a palindrome (21414041412).

The spelling of 20212020210 in words is "twenty billion, two hundred twelve million, twenty thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 673734007 1347468014 2021202021 3368670035 4042404042 6737340070 10106010105 20212020210