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38073861 = 337201449
BaseRepresentation
bin1001000100111…
…1011000000101
32122122100112000
42101033120011
534221330421
63440015513
7641423340
oct221173005
978570460
1038073861
111a545501
1210901599
137b70c17
1450b1457
153521226
hex244f605

38073861 has 16 divisors (see below), whose sum is σ = 64464000. Its totient is φ = 21756384.

The previous prime is 38073823. The next prime is 38073883. The reversal of 38073861 is 16837083.

It is not a de Polignac number, because 38073861 - 27 = 38073733 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38073811) 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 15 ways as a sum of consecutive naturals, for example, 100536 + ... + 100913.

It is an arithmetic number, because the mean of its divisors is an integer number (4029000).

Almost surely, 238073861 is an apocalyptic number.

It is an amenable number.

38073861 is a deficient number, since it is larger than the sum of its proper divisors (26390139).

38073861 is a wasteful number, since it uses less digits than its factorization.

38073861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201465 (or 201459 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 38073861 is about 6170.4020128351. The cubic root of 38073861 is about 336.4152232697.

The spelling of 38073861 in words is "thirty-eight million, seventy-three thousand, eight hundred sixty-one".

Divisors: 1 3 7 9 21 27 63 189 201449 604347 1410143 1813041 4230429 5439123 12691287 38073861