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42893331 = 3131139733
BaseRepresentation
bin1010001110100…
…0000000010011
32222201012120220
42203220000103
541440041311
64131204123
71030405305
oct243500023
988635526
1042893331
1122237438
1212446643
138b6a790
1459a7975
153b74206
hex28e8013

42893331 has 16 divisors (see below), whose sum is σ = 62141856. Its totient is φ = 26159616.

The previous prime is 42893327. The next prime is 42893341. The reversal of 42893331 is 13339824.

It is a happy number.

It is not a de Polignac number, because 42893331 - 22 = 42893327 is a prime.

It is a super-2 number, since 2×428933312 = 3679675688551122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42893292 and 42893301.

It is not an unprimeable number, because it can be changed into a prime (42893311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460 + ... + 9273.

It is an arithmetic number, because the mean of its divisors is an integer number (3883866).

Almost surely, 242893331 is an apocalyptic number.

42893331 is a deficient number, since it is larger than the sum of its proper divisors (19248525).

42893331 is a wasteful number, since it uses less digits than its factorization.

42893331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9862.

The product of its digits is 15552, while the sum is 33.

The square root of 42893331 is about 6549.3000389355. The cubic root of 42893331 is about 350.0498731651.

The spelling of 42893331 in words is "forty-two million, eight hundred ninety-three thousand, three hundred thirty-one".

Divisors: 1 3 13 39 113 339 1469 4407 9733 29199 126529 379587 1099829 3299487 14297777 42893331