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103244839 = 939710987
BaseRepresentation
bin1100010011101…
…10010000100111
321012021101021221
412021312100213
5202412313324
614124521211
72362365235
oct611662047
9235241257
10103244839
1153308415
122a6b0207
131850b729
14d9d7955
1590e60e4
hex6276427

103244839 has 4 divisors (see below), whose sum is σ = 103265224. Its totient is φ = 103224456.

The previous prime is 103244809. The next prime is 103244857. The reversal of 103244839 is 938442301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938442301 = 1873501037.

It is a cyclic number.

It is not a de Polignac number, because 103244839 - 27 = 103244711 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 (103244809) 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, 3904 + ... + 14890.

It is an arithmetic number, because the mean of its divisors is an integer number (25816306).

Almost surely, 2103244839 is an apocalyptic number.

103244839 is a deficient number, since it is larger than the sum of its proper divisors (20385).

103244839 is an equidigital number, since it uses as much as digits as its factorization.

103244839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20384.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 103244839 is about 10160.9467570694. The cubic root of 103244839 is about 469.1259430545.

The spelling of 103244839 in words is "one hundred three million, two hundred forty-four thousand, eight hundred thirty-nine".

Divisors: 1 9397 10987 103244839