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20132230131 = 3413109175403
BaseRepresentation
bin10010101111111110…
…010111001111110011
31220222001100020220000
4102233332113033303
5312212322331011
613125411321043
71311616063326
oct225776271763
956861306800
1020132230131
1185a1134522
123a9a2b0183
131b8abc4510
14d8daa67bd
157cc68a356
hex4aff973f3

20132230131 has 40 divisors (see below), whose sum is σ = 32684781360. Its totient is φ = 12275333568.

The previous prime is 20132230109. The next prime is 20132230169. The reversal of 20132230131 is 13103223102.

It is not a de Polignac number, because 20132230131 - 27 = 20132230003 is a prime.

It is a super-2 number, since 2×201322301312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20132230631) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27076 + ... + 202478.

It is an arithmetic number, because the mean of its divisors is an integer number (817119534).

Almost surely, 220132230131 is an apocalyptic number.

20132230131 is a deficient number, since it is larger than the sum of its proper divisors (12552551229).

20132230131 is a wasteful number, since it uses less digits than its factorization.

20132230131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175537 (or 175528 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20132230131 its reverse (13103223102), we get a palindrome (33235453233).

The spelling of 20132230131 in words is "twenty billion, one hundred thirty-two million, two hundred thirty thousand, one hundred thirty-one".

Divisors: 1 3 9 13 27 39 81 109 117 327 351 981 1053 1417 2943 4251 8829 12753 38259 114777 175403 526209 1578627 2280239 4735881 6840717 14207643 19118927 20522151 57356781 61566453 172070343 184699359 248546051 516211029 745638153 1548633087 2236914459 6710743377 20132230131