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20132201231 = 231635370019
BaseRepresentation
bin10010101111111110…
…010000001100001111
31220222001021210020122
4102233332100030033
5312212320414411
613125410535155
71311615613142
oct225776201417
956861253218
1020132201231
1185a111483a
123a9a2974bb
131b8abb430c
14d8da9a059
157cc6819db
hex4aff9030f

20132201231 has 8 divisors (see below), whose sum is σ = 21136398720. Its totient is φ = 19138744152.

The previous prime is 20132201189. The next prime is 20132201233. The reversal of 20132201231 is 13210223102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20132201231 - 214 = 20132184847 is a prime.

It is a super-2 number, since 2×201322012312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132201233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2681261 + ... + 2688758.

It is an arithmetic number, because the mean of its divisors is an integer number (2642049840).

Almost surely, 220132201231 is an apocalyptic number.

20132201231 is a deficient number, since it is larger than the sum of its proper divisors (1004197489).

20132201231 is a wasteful number, since it uses less digits than its factorization.

20132201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5370205.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20132201231 its reverse (13210223102), we get a palindrome (33342424333).

The spelling of 20132201231 in words is "twenty billion, one hundred thirty-two million, two hundred one thousand, two hundred thirty-one".

Divisors: 1 23 163 3749 5370019 123510437 875313097 20132201231