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43130442 = 2341175327
BaseRepresentation
bin1010010010000…
…1111001001010
310000011020211210
42210201321022
542020133232
64140233550
71032413505
oct244417112
9100136753
1043130442
11223895a3
121253b8b6
138c21694
145a2a13c
153bbe5cc
hex2921e4a

43130442 has 16 divisors (see below), whose sum is σ = 88365312. Its totient is φ = 14026080.

The previous prime is 43130431. The next prime is 43130447. The reversal of 43130442 is 24403134.

It is not an unprimeable number, because it can be changed into a prime (43130447) 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 7 ways as a sum of consecutive naturals, for example, 87418 + ... + 87909.

It is an arithmetic number, because the mean of its divisors is an integer number (5522832).

Almost surely, 243130442 is an apocalyptic number.

43130442 is an abundant number, since it is smaller than the sum of its proper divisors (45234870).

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

43130442 is a wasteful number, since it uses less digits than its factorization.

43130442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175373.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 43130442 is about 6567.3771020096. The cubic root of 43130442 is about 350.6937044328.

Adding to 43130442 its reverse (24403134), we get a palindrome (67533576).

The spelling of 43130442 in words is "forty-three million, one hundred thirty thousand, four hundred forty-two".

Divisors: 1 2 3 6 41 82 123 246 175327 350654 525981 1051962 7188407 14376814 21565221 43130442