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111430434 = 23131141769
BaseRepresentation
bin1101010010001…
…00101100100010
321202200020211010
412221010230202
5212011233214
615020201350
72522100033
oct651045442
9252606733
10111430434
1157999375
1231399256
131a11648b
1410b28a8a
159bb1659
hex6a44b22

111430434 has 16 divisors (see below), whose sum is σ = 224563680. Its totient is φ = 36859680.

The previous prime is 111430411. The next prime is 111430463. The reversal of 111430434 is 434034111.

It is a self number, because there is not a number n which added to its sum of digits gives 111430434.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 70099 + ... + 71670.

It is an arithmetic number, because the mean of its divisors is an integer number (14035230).

Almost surely, 2111430434 is an apocalyptic number.

111430434 is an abundant number, since it is smaller than the sum of its proper divisors (113133246).

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

111430434 is a wasteful number, since it uses less digits than its factorization.

111430434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141905.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 111430434 is about 10556.0614814428. The cubic root of 111430434 is about 481.2099595854.

Adding to 111430434 its reverse (434034111), we get a palindrome (545464545).

The spelling of 111430434 in words is "one hundred eleven million, four hundred thirty thousand, four hundred thirty-four".

Divisors: 1 2 3 6 131 262 393 786 141769 283538 425307 850614 18571739 37143478 55715217 111430434