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38242109 = 1512511009
BaseRepresentation
bin1001000111100…
…0011100111101
32122221220022102
42101320130331
534242221414
63443354445
7643024013
oct221703475
978856272
1038242109
111a64a954
1210982a25
137bcc689
1451168b3
153555ede
hex247873d

38242109 has 8 divisors (see below), whose sum is σ = 38687040. Its totient is φ = 37800000.

The previous prime is 38242103. The next prime is 38242147. The reversal of 38242109 is 90124283.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38242109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38242103) 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, 37397 + ... + 38405.

It is an arithmetic number, because the mean of its divisors is an integer number (4835880).

Almost surely, 238242109 is an apocalyptic number.

It is an amenable number.

38242109 is a deficient number, since it is larger than the sum of its proper divisors (444931).

38242109 is a wasteful number, since it uses less digits than its factorization.

38242109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 38242109 is about 6184.0204559817. The cubic root of 38242109 is about 336.9100336000.

The spelling of 38242109 in words is "thirty-eight million, two hundred forty-two thousand, one hundred nine".

Divisors: 1 151 251 1009 37901 152359 253259 38242109