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20132938 = 271438067
BaseRepresentation
bin100110011001…
…1010001001010
31101212212012101
41030303101022
520123223223
61555304014
7333061420
oct114632112
941785171
1020132938
11104011a1
1268ab00a
13422baa7
142961110
151b7a4ad
hex133344a

20132938 has 8 divisors (see below), whose sum is σ = 34513632. Its totient is φ = 8628396.

The previous prime is 20132933. The next prime is 20132939. The reversal of 20132938 is 83923102.

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

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (20132933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719020 + ... + 719047.

It is an arithmetic number, because the mean of its divisors is an integer number (4314204).

Almost surely, 220132938 is an apocalyptic number.

20132938 is a deficient number, since it is larger than the sum of its proper divisors (14380694).

20132938 is a wasteful number, since it uses less digits than its factorization.

20132938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438076.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 20132938 is about 4486.9742588965. The cubic root of 20132938 is about 272.0418494576.

The spelling of 20132938 in words is "twenty million, one hundred thirty-two thousand, nine hundred thirty-eight".

Divisors: 1 2 7 14 1438067 2876134 10066469 20132938