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210409449601 = 1321729971971
BaseRepresentation
bin1100001111110101100…
…0010110100010000001
3202010002210111111212211
43003331120112202001
511421404304341401
6240354420422121
721126066545401
oct3037530264201
9663083444784
10210409449601
118126371580a
1234941847941
1316ac2aa9100
14a280788801
155717260951
hex30fd616881

210409449601 has 12 divisors (see below), whose sum is σ = 227856154800. Its totient is φ = 194210181360.

The previous prime is 210409449587. The next prime is 210409449611. The reversal of 210409449601 is 106944904012.

It is not a de Polignac number, because 210409449601 - 231 = 208261965953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210409449611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2887546 + ... + 2959516.

It is an arithmetic number, because the mean of its divisors is an integer number (18988012900).

Almost surely, 2210409449601 is an apocalyptic number.

It is an amenable number.

210409449601 is a deficient number, since it is larger than the sum of its proper divisors (17446705199).

210409449601 is a wasteful number, since it uses less digits than its factorization.

210409449601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89296 (or 89283 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 210409449601 in words is "two hundred ten billion, four hundred nine million, four hundred forty-nine thousand, six hundred one".

Divisors: 1 13 169 17299 71971 224887 935623 2923531 12163099 1245026329 16185342277 210409449601