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20132101210 = 2513154862317
BaseRepresentation
bin10010101111111101…
…110111110001011010
31220222001002201001011
4102233331313301122
5312212304214320
613125404444134
71311615015424
oct225775676132
956861081034
1020132101210
1185a1056681
123a9a24964a
131b8ab7a930
14d8da71814
157cc66205a
hex4aff77c5a

20132101210 has 16 divisors (see below), whose sum is σ = 39025304136. Its totient is φ = 7433391168.

The previous prime is 20132101159. The next prime is 20132101211. The reversal of 20132101210 is 1210123102.

It can be written as a sum of positive squares in 4 ways, for example, as 5219051049 + 14913050161 = 72243^2 + 122119^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (20132101211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77431029 + ... + 77431288.

Almost surely, 220132101210 is an apocalyptic number.

20132101210 is a deficient number, since it is larger than the sum of its proper divisors (18893202926).

20132101210 is a wasteful number, since it uses less digits than its factorization.

20132101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154862337.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20132101210 its reverse (1210123102), we get a palindrome (21342224312).

The spelling of 20132101210 in words is "twenty billion, one hundred thirty-two million, one hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 13 26 65 130 154862317 309724634 774311585 1548623170 2013210121 4026420242 10066050605 20132101210