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210102010212 = 22317508500851
BaseRepresentation
bin1100001110101100001…
…1100100000101100100
3202002022100222222022210
43003223003210011210
511420242103311322
6240304115123420
721115344422553
oct3035303440544
9662270888283
10210102010212
118111611aa76
12348768a3570
1316a741a5103
14a2519d9d9a
1556ea28270c
hex30eb0e4164

210102010212 has 12 divisors (see below), whose sum is σ = 490238023856. Its totient is φ = 70034003400.

The previous prime is 210102010211. The next prime is 210102010219. The reversal of 210102010212 is 212010201012.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 17508500851 = 210102010212 / (2 + 1 + 0 + 1 + 0 + 2 + 0 + 1 + 0 + 2 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (210102010211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8754250414 + ... + 8754250437.

Almost surely, 2210102010212 is an apocalyptic number.

It is an amenable number.

210102010212 is an abundant number, since it is smaller than the sum of its proper divisors (280136013644).

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

210102010212 is a wasteful number, since it uses less digits than its factorization.

210102010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17508500858 (or 17508500856 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210102010212 its reverse (212010201012), we get a palindrome (422112211224).

The spelling of 210102010212 in words is "two hundred ten billion, one hundred two million, ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 17508500851 35017001702 52525502553 70034003404 105051005106 210102010212