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42937019 = 1721011471
BaseRepresentation
bin1010001111001…
…0101010111011
32222210102111222
42203302222323
541442441034
64132142255
71030646546
oct243625273
988712458
1042937019
1122267244
121246798b
138b84628
1459b985d
153b8212e
hex28f2abb

42937019 has 12 divisors (see below), whose sum is σ = 46094208. Its totient is φ = 39984000.

The previous prime is 42936967. The next prime is 42937039. The reversal of 42937019 is 91073924.

It is not a de Polignac number, because 42937019 - 224 = 26159803 is a prime.

It is a super-3 number, since 3×429370193 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 42937019.

It is not an unprimeable number, because it can be changed into a prime (42937039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28454 + ... + 29924.

It is an arithmetic number, because the mean of its divisors is an integer number (3841184).

Almost surely, 242937019 is an apocalyptic number.

42937019 is a deficient number, since it is larger than the sum of its proper divisors (3157189).

42937019 is a wasteful number, since it uses less digits than its factorization.

42937019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606 (or 1589 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 42937019 is about 6552.6345083485. The cubic root of 42937019 is about 350.1686778785.

The spelling of 42937019 in words is "forty-two million, nine hundred thirty-seven thousand, nineteen".

Divisors: 1 17 101 289 1471 1717 25007 29189 148571 425119 2525707 42937019