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42687159 = 3293789149
BaseRepresentation
bin1010001011010…
…1101010110111
32222022201202220
42202311222313
541411442114
64122533423
71025556234
oct242655267
988281686
1042687159
1122106549
1212367273
138ac7998
14595278b
153b330a9
hex28b5ab7

42687159 has 32 divisors (see below), whose sum is σ = 61560000. Its totient is φ = 26256384.

The previous prime is 42687157. The next prime is 42687173. The reversal of 42687159 is 95178624.

It is not a de Polignac number, because 42687159 - 21 = 42687157 is a prime.

It is a super-3 number, since 3×426871593 (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42687159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42687157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286417 + ... + 286565.

It is an arithmetic number, because the mean of its divisors is an integer number (1923750).

Almost surely, 242687159 is an apocalyptic number.

42687159 is a deficient number, since it is larger than the sum of its proper divisors (18872841).

42687159 is a wasteful number, since it uses less digits than its factorization.

42687159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307.

The product of its digits is 120960, while the sum is 42.

The square root of 42687159 is about 6533.5410766291. The cubic root of 42687159 is about 349.4881197597.

The spelling of 42687159 in words is "forty-two million, six hundred eighty-seven thousand, one hundred fifty-nine".

Divisors: 1 3 29 37 87 89 111 149 267 447 1073 2581 3219 3293 4321 5513 7743 9879 12963 13261 16539 39783 95497 159877 286491 384569 479631 490657 1153707 1471971 14229053 42687159