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838043013 = 31914702509
BaseRepresentation
bin110001111100111…
…000010110000101
32011101220222220010
4301330320112011
53204014334023
6215054100433
726524151043
oct6174702605
92141828803
10838043013
113a0065135
121b47aa719
13104812a52
147d42d393
154d88e093
hex31f38585

838043013 has 8 divisors (see below), whose sum is σ = 1176200800. Its totient is φ = 529290288.

The previous prime is 838042991. The next prime is 838043027. The reversal of 838043013 is 310340838.

838043013 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 not a de Polignac number, because 838043013 - 217 = 837911941 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 (838047013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7351198 + ... + 7351311.

It is an arithmetic number, because the mean of its divisors is an integer number (147025100).

Almost surely, 2838043013 is an apocalyptic number.

It is an amenable number.

838043013 is a deficient number, since it is larger than the sum of its proper divisors (338157787).

838043013 is a wasteful number, since it uses less digits than its factorization.

838043013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14702531.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 838043013 is about 28948.9725724420. The cubic root of 838043013 is about 942.8054909163.

The spelling of 838043013 in words is "eight hundred thirty-eight million, forty-three thousand, thirteen".

Divisors: 1 3 19 57 14702509 44107527 279347671 838043013