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42807190 = 25171929457
BaseRepresentation
bin1010001101001…
…0111110010110
32222112211102111
42203102332112
541424312230
64125301234
71026566206
oct243227626
988484374
1042807190
1122188748
121240481a
138b3a4ca
145984406
153b5892a
hex28d2f96

42807190 has 64 divisors (see below), whose sum is σ = 89035200. Its totient is φ = 14708736.

The previous prime is 42807181. The next prime is 42807197. The reversal of 42807190 is 9170824.

It is a super-2 number, since 2×428071902 = 3664911031392200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42807197) 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, 93442 + ... + 93898.

It is an arithmetic number, because the mean of its divisors is an integer number (1391175).

Almost surely, 242807190 is an apocalyptic number.

42807190 is an abundant number, since it is smaller than the sum of its proper divisors (46228010).

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

42807190 is a wasteful number, since it uses less digits than its factorization.

42807190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 42807190 is about 6542.7203822263. The cubic root of 42807190 is about 349.8153856318.

The spelling of 42807190 in words is "forty-two million, eight hundred seven thousand, one hundred ninety".

Divisors: 1 2 5 10 17 19 29 34 38 58 85 95 145 170 190 290 323 457 493 551 646 914 986 1102 1615 2285 2465 2755 3230 4570 4930 5510 7769 8683 9367 13253 15538 17366 18734 26506 38845 43415 46835 66265 77690 86830 93670 132530 147611 225301 251807 295222 450602 503614 738055 1126505 1259035 1476110 2253010 2518070 4280719 8561438 21403595 42807190