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38406007 = 307125101
BaseRepresentation
bin1001001010000…
…0011101110111
32200021020010201
42102200131313
534312443012
63451101331
7644305603
oct222403567
980236121
1038406007
111a752002
1210a41847
137c59163
14515a503
153589857
hex24a0777

38406007 has 4 divisors (see below), whose sum is σ = 38531416. Its totient is φ = 38280600.

The previous prime is 38405999. The next prime is 38406029. The reversal of 38406007 is 70060483.

38406007 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 is a cyclic number.

It is not a de Polignac number, because 38406007 - 23 = 38405999 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 (38406607) 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, 62244 + ... + 62857.

It is an arithmetic number, because the mean of its divisors is an integer number (9632854).

Almost surely, 238406007 is an apocalyptic number.

38406007 is a deficient number, since it is larger than the sum of its proper divisors (125409).

38406007 is a wasteful number, since it uses less digits than its factorization.

38406007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125408.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 38406007 is about 6197.2580227065. The cubic root of 38406007 is about 337.3906572174.

The spelling of 38406007 in words is "thirty-eight million, four hundred six thousand, seven".

Divisors: 1 307 125101 38406007