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38696261 = 157246473
BaseRepresentation
bin1001001110011…
…1010101000101
32200210222021212
42103213111011
534401240021
63501221205
7646625042
oct223472505
980728255
1038696261
111a93008a
1210b61805
13802b2c6
1451d41c9
1535e585b
hex24e7545

38696261 has 4 divisors (see below), whose sum is σ = 38942892. Its totient is φ = 38449632.

The previous prime is 38696249. The next prime is 38696263. The reversal of 38696261 is 16269683.

38696261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8236900 + 30459361 = 2870^2 + 5519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38696261 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 (38696263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123080 + ... + 123393.

It is an arithmetic number, because the mean of its divisors is an integer number (9735723).

Almost surely, 238696261 is an apocalyptic number.

It is an amenable number.

38696261 is a deficient number, since it is larger than the sum of its proper divisors (246631).

38696261 is a wasteful number, since it uses less digits than its factorization.

38696261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246630.

The product of its digits is 93312, while the sum is 41.

The square root of 38696261 is about 6220.6318810873. The cubic root of 38696261 is about 338.2384700650.

The spelling of 38696261 in words is "thirty-eight million, six hundred ninety-six thousand, two hundred sixty-one".

Divisors: 1 157 246473 38696261