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42093071 = 173179873
BaseRepresentation
bin1010000010010…
…0101000001111
32221012112211122
42200210220033
541233434241
64102111155
71020533216
oct240445017
987175748
1042093071
1121840169
121211b4bb
13894a457
14583a07d
153a6704b
hex2824a0f

42093071 has 8 divisors (see below), whose sum is σ = 46007424. Its totient is φ = 38338560.

The previous prime is 42093067. The next prime is 42093089. The reversal of 42093071 is 17039024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42093071 - 22 = 42093067 is a prime.

It is a super-2 number, since 2×420930712 = 3543653252422082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42093071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42093011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39410 + ... + 40463.

It is an arithmetic number, because the mean of its divisors is an integer number (5750928).

Almost surely, 242093071 is an apocalyptic number.

42093071 is a deficient number, since it is larger than the sum of its proper divisors (3914353).

42093071 is a wasteful number, since it uses less digits than its factorization.

42093071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79921.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 42093071 is about 6487.9173083510. The cubic root of 42093071 is about 347.8592348067.

The spelling of 42093071 in words is "forty-two million, ninety-three thousand, seventy-one".

Divisors: 1 17 31 527 79873 1357841 2476063 42093071