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20434133132 = 2277122346093
BaseRepresentation
bin10011000001111110…
…000010000010001100
31221202002102111221122
4103001332002002030
5313322114230012
613215354220112
71322243160110
oct230176020214
957662374848
1020434133132
118736598736
123b63424638
131c0860a54a
14dbbc13740
157e8e22e72
hex4c1f8208c

20434133132 has 48 divisors (see below), whose sum is σ = 41630625792. Its totient is φ = 8595236160.

The previous prime is 20434133123. The next prime is 20434133141. The reversal of 20434133132 is 23133143402.

It is an interprime number because it is at equal distance from previous prime (20434133123) and next prime (20434133141).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420278 + ... + 466370.

It is an arithmetic number, because the mean of its divisors is an integer number (867304704).

Almost surely, 220434133132 is an apocalyptic number.

It is an amenable number.

20434133132 is an abundant number, since it is smaller than the sum of its proper divisors (21196492660).

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

20434133132 is a wasteful number, since it uses less digits than its factorization.

20434133132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46398 (or 46396 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 20434133132 its reverse (23133143402), we get a palindrome (43567276534).

The spelling of 20434133132 in words is "twenty billion, four hundred thirty-four million, one hundred thirty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 71 142 223 284 446 497 892 994 1561 1988 3122 6244 15833 31666 46093 63332 92186 110831 184372 221662 322651 443324 645302 1290604 3272603 6545206 10278739 13090412 20557478 22908221 41114956 45816442 71951173 91632884 143902346 287804692 729790469 1459580938 2919161876 5108533283 10217066566 20434133132