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38042147 = 1113266029
BaseRepresentation
bin1001000100011…
…1101000100011
32122120202000102
42101013220203
534214322042
63435213015
7641232023
oct221075043
978522012
1038042147
111a5236a0
12108a716b
137b5c660
1450a3a83
153516b32
hex2447a23

38042147 has 8 divisors (see below), whose sum is σ = 44693040. Its totient is φ = 31923360.

The previous prime is 38042111. The next prime is 38042149. The reversal of 38042147 is 74124083.

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 38042147 - 26 = 38042083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38042149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132872 + ... + 133157.

It is an arithmetic number, because the mean of its divisors is an integer number (5586630).

Almost surely, 238042147 is an apocalyptic number.

38042147 is a deficient number, since it is larger than the sum of its proper divisors (6650893).

38042147 is a wasteful number, since it uses less digits than its factorization.

38042147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266053.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 38042147 is about 6167.8316287006. The cubic root of 38042147 is about 336.3217905244.

The spelling of 38042147 in words is "thirty-eight million, forty-two thousand, one hundred forty-seven".

Divisors: 1 11 13 143 266029 2926319 3458377 38042147