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6990383 = 172831453
BaseRepresentation
bin11010101010101000101111
3111011011000002
4122222220233
53242143013
6405454515
7113263061
oct32525057
914134002
106990383
113a44a84
12241143b
1315a9a2a
14cdd731
15931358
hex6aaa2f

6990383 has 8 divisors (see below), whose sum is σ = 7432848. Its totient is φ = 6551424.

The previous prime is 6990371. The next prime is 6990419. The reversal of 6990383 is 3830996.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6990383 - 214 = 6973999 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 (6990323) 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, 4085 + ... + 5537.

It is an arithmetic number, because the mean of its divisors is an integer number (929106).

Almost surely, 26990383 is an apocalyptic number.

6990383 is a deficient number, since it is larger than the sum of its proper divisors (442465).

6990383 is a wasteful number, since it uses less digits than its factorization.

6990383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 6990383 is about 2643.9332442405. The cubic root of 6990383 is about 191.2054749895.

The spelling of 6990383 in words is "six million, nine hundred ninety thousand, three hundred eighty-three".

Divisors: 1 17 283 1453 4811 24701 411199 6990383