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42107793 = 37131743211
BaseRepresentation
bin1010000010100…
…0001110010001
32221020022000220
42200220032101
541234422133
64102303253
71020624150
oct240501621
987208026
1042107793
1121850232
1212127b29
138954070
145841597
153a6b5b3
hex2828391

42107793 has 64 divisors (see below), whose sum is σ = 75220992. Its totient is φ = 20321280.

The previous prime is 42107783. The next prime is 42107801. The reversal of 42107793 is 39770124.

It is not a de Polignac number, because 42107793 - 212 = 42103697 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42107713) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 199458 + ... + 199668.

It is an arithmetic number, because the mean of its divisors is an integer number (1175328).

Almost surely, 242107793 is an apocalyptic number.

42107793 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42107793 is a deficient number, since it is larger than the sum of its proper divisors (33113199).

42107793 is a wasteful number, since it uses less digits than its factorization.

42107793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 42107793 is about 6489.0517797287. The cubic root of 42107793 is about 347.8997845267.

The spelling of 42107793 in words is "forty-two million, one hundred seven thousand, seven hundred ninety-three".

Divisors: 1 3 7 13 17 21 39 43 51 91 119 129 211 221 273 301 357 559 633 663 731 903 1477 1547 1677 2193 2743 3587 3913 4431 4641 5117 8229 9073 9503 10761 11739 15351 19201 25109 27219 28509 46631 57603 63511 66521 75327 117949 139893 154241 190533 199563 326417 353847 462723 825643 979251 1079687 2005133 2476929 3239061 6015399 14035931 42107793