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42969141 = 324774349
BaseRepresentation
bin1010001111101…
…0100000110101
32222212001120200
42203322200311
542000003031
64132551113
71031142315
oct243724065
988761520
1042969141
1122289396
1212482499
138b96137
1459c7445
153b8b8e6
hex28fa835

42969141 has 6 divisors (see below), whose sum is σ = 62066550. Its totient is φ = 28646088.

The previous prime is 42969133. The next prime is 42969191. The reversal of 42969141 is 14196924.

It is a happy number.

42969141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 42850116 + 119025 = 6546^2 + 345^2 .

It is not a de Polignac number, because 42969141 - 23 = 42969133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42969096 and 42969105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42969191) 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 5 ways as a sum of consecutive naturals, for example, 2387166 + ... + 2387183.

It is an arithmetic number, because the mean of its divisors is an integer number (10344425).

Almost surely, 242969141 is an apocalyptic number.

It is an amenable number.

42969141 is a deficient number, since it is larger than the sum of its proper divisors (19097409).

42969141 is a wasteful number, since it uses less digits than its factorization.

42969141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774355 (or 4774352 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 42969141 is about 6555.0851253054. The cubic root of 42969141 is about 350.2559787262.

The spelling of 42969141 in words is "forty-two million, nine hundred sixty-nine thousand, one hundred forty-one".

Divisors: 1 3 9 4774349 14323047 42969141