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20134499 = 7112311369
BaseRepresentation
bin100110011001…
…1101001100011
31101212221100012
41030303221203
520123300444
61555315135
7333066110
oct114635143
941787305
1020134499
1110402390
1268abaab
13422c708
142961907
151b7ab9e
hex1333a63

20134499 has 16 divisors (see below), whose sum is σ = 26196480. Its totient is φ = 15005760.

The previous prime is 20134489. The next prime is 20134529. The reversal of 20134499 is 99443102.

It is a happy number.

It is not a de Polignac number, because 20134499 - 24 = 20134483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20134489) by changing a digit.

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, 3914 + ... + 7455.

It is an arithmetic number, because the mean of its divisors is an integer number (1637280).

Almost surely, 220134499 is an apocalyptic number.

20134499 is a deficient number, since it is larger than the sum of its proper divisors (6061981).

20134499 is a wasteful number, since it uses less digits than its factorization.

20134499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11410.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 20134499 is about 4487.1482034807. The cubic root of 20134499 is about 272.0488801644.

The spelling of 20134499 in words is "twenty million, one hundred thirty-four thousand, four hundred ninety-nine".

Divisors: 1 7 11 23 77 161 253 1771 11369 79583 125059 261487 875413 1830409 2876357 20134499