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38690033 = 137282409
BaseRepresentation
bin1001001110010…
…1110011110001
32200210122202012
42103211303301
534401040113
63501132305
7646600634
oct223456361
980718665
1038690033
111a926438
1210b5a095
138028515
1451d1c1b
1535e3aa8
hex24e5cf1

38690033 has 4 divisors (see below), whose sum is σ = 38972580. Its totient is φ = 38407488.

The previous prime is 38690027. The next prime is 38690039. The reversal of 38690033 is 33009683.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (38690027) and next prime (38690039).

It can be written as a sum of positive squares in 2 ways, for example, as 11888704 + 26801329 = 3448^2 + 5177^2 .

It is a cyclic number.

It is not a de Polignac number, because 38690033 - 210 = 38689009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38690039) 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, 141068 + ... + 141341.

It is an arithmetic number, because the mean of its divisors is an integer number (9743145).

Almost surely, 238690033 is an apocalyptic number.

It is an amenable number.

38690033 is a deficient number, since it is larger than the sum of its proper divisors (282547).

38690033 is a wasteful number, since it uses less digits than its factorization.

38690033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282546.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 38690033 is about 6220.1312687113. The cubic root of 38690033 is about 338.2203230730.

The spelling of 38690033 in words is "thirty-eight million, six hundred ninety thousand, thirty-three".

Divisors: 1 137 282409 38690033