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103143399 = 3107321319
BaseRepresentation
bin1100010010111…
…01011111100111
321012002020010220
412021131133213
5202401042044
614122415423
72361463422
oct611353747
9235066126
10103143399
1153249187
122a661573
13184a44c8
14d9ac9b9
1590c6019
hex625d7e7

103143399 has 8 divisors (see below), whose sum is σ = 138810240. Its totient is φ = 68119416.

The previous prime is 103143377. The next prime is 103143407. The reversal of 103143399 is 993341301.

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

It is not a de Polignac number, because 103143399 - 25 = 103143367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103143319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160339 + ... + 160980.

It is an arithmetic number, because the mean of its divisors is an integer number (17351280).

Almost surely, 2103143399 is an apocalyptic number.

103143399 is a deficient number, since it is larger than the sum of its proper divisors (35666841).

103143399 is a wasteful number, since it uses less digits than its factorization.

103143399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321429.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 103143399 is about 10155.9538695289. The cubic root of 103143399 is about 468.9722510151.

The spelling of 103143399 in words is "one hundred three million, one hundred forty-three thousand, three hundred ninety-nine".

Divisors: 1 3 107 321 321319 963957 34381133 103143399