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3890012 = 227289223
BaseRepresentation
bin1110110101101101011100
321022122002112
432311231130
51443440022
6215213152
745031100
oct16655534
97278075
103890012
112217695
1213771b8
13a627a9
14733900
1551c8e2
hex3b5b5c

3890012 has 36 divisors (see below), whose sum is σ = 8043840. Its totient is φ = 1641024.

The previous prime is 3890011. The next prime is 3890021. The reversal of 3890012 is 2100983.

It is a self number, because there is not a number n which added to its sum of digits gives 3890012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17333 + ... + 17555.

It is an arithmetic number, because the mean of its divisors is an integer number (223440).

Almost surely, 23890012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3890012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4021920).

3890012 is an abundant number, since it is smaller than the sum of its proper divisors (4153828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3890012 is a wasteful number, since it uses less digits than its factorization.

3890012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 3890012 is about 1972.3113344500. The cubic root of 3890012 is about 157.2716031092.

Adding to 3890012 its reverse (2100983), we get a palindrome (5990995).

The spelling of 3890012 in words is "three million, eight hundred ninety thousand, twelve".

Divisors: 1 2 4 7 14 28 49 89 98 178 196 223 356 446 623 892 1246 1561 2492 3122 4361 6244 8722 10927 17444 19847 21854 39694 43708 79388 138929 277858 555716 972503 1945006 3890012