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3189431 = 74111113
BaseRepresentation
bin1100001010101010110111
320000001002002
430022222313
51304030211
6152205515
736052430
oct14125267
96001062
103189431
1118892a3
12109989b
1387894b
145d0487
1543003b
hex30aab7

3189431 has 8 divisors (see below), whose sum is σ = 3734304. Its totient is φ = 2666880.

The previous prime is 3189427. The next prime is 3189451. The reversal of 3189431 is 1349813.

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 3189431 - 22 = 3189427 is a prime.

It is a super-3 number, since 3×31894313 = 97333174486525649973, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 3189394 and 3189403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3189451) 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, 5270 + ... + 5843.

It is an arithmetic number, because the mean of its divisors is an integer number (466788).

Almost surely, 23189431 is an apocalyptic number.

3189431 is a deficient number, since it is larger than the sum of its proper divisors (544873).

3189431 is a wasteful number, since it uses less digits than its factorization.

3189431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161.

The product of its digits is 2592, while the sum is 29.

The square root of 3189431 is about 1785.8978134261. The cubic root of 3189431 is about 147.1988454689.

The spelling of 3189431 in words is "three million, one hundred eighty-nine thousand, four hundred thirty-one".

Divisors: 1 7 41 287 11113 77791 455633 3189431