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38065697 = 117132507
BaseRepresentation
bin1001000100110…
…1011000100001
32122121221022122
42101031120201
534221100242
63435514025
7641360465
oct221153041
978557278
1038065697
111a53a35a
12108b8915
137b6a2a7
1450ac4a5
15351dad2
hex244d621

38065697 has 4 divisors (see below), whose sum is σ = 38099376. Its totient is φ = 38032020.

The previous prime is 38065693. The next prime is 38065717. The reversal of 38065697 is 79656083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79656083 = 136127391.

It is a cyclic number.

It is not a de Polignac number, because 38065697 - 22 = 38065693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38065691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15083 + ... + 17424.

It is an arithmetic number, because the mean of its divisors is an integer number (9524844).

Almost surely, 238065697 is an apocalyptic number.

It is an amenable number.

38065697 is a deficient number, since it is larger than the sum of its proper divisors (33679).

38065697 is a wasteful number, since it uses less digits than its factorization.

38065697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33678.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 38065697 is about 6169.7404321414. The cubic root of 38065697 is about 336.3911762364.

The spelling of 38065697 in words is "thirty-eight million, sixty-five thousand, six hundred ninety-seven".

Divisors: 1 1171 32507 38065697