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38809211 = 723241051
BaseRepresentation
bin1001010000001…
…0111001111011
32201000201020012
42110002321323
534413343321
63503452135
7650605250
oct224027173
981021205
1038809211
111a9a7a31
1210bb704b
13806a83c
145223427
15361905b
hex2502e7b

38809211 has 8 divisors (see below), whose sum is σ = 46281984. Its totient is φ = 31818600.

The previous prime is 38809201. The next prime is 38809219. The reversal of 38809211 is 11290883.

38809211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38809211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38809219) 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 7 ways as a sum of consecutive naturals, for example, 120365 + ... + 120686.

It is an arithmetic number, because the mean of its divisors is an integer number (5785248).

Almost surely, 238809211 is an apocalyptic number.

38809211 is a deficient number, since it is larger than the sum of its proper divisors (7472773).

38809211 is a wasteful number, since it uses less digits than its factorization.

38809211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241081.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 38809211 is about 6229.7039255490. The cubic root of 38809211 is about 338.5672436406.

The spelling of 38809211 in words is "thirty-eight million, eight hundred nine thousand, two hundred eleven".

Divisors: 1 7 23 161 241051 1687357 5544173 38809211