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3912490 = 25391249
BaseRepresentation
bin1110111011001100101010
321100202221001
432323030222
52000144430
6215505214
745153451
oct16731452
97322831
103912490
11223256a
12138820a
13a6caaa
1473bb98
155243ca
hex3bb32a

3912490 has 8 divisors (see below), whose sum is σ = 7042500. Its totient is φ = 1564992.

The previous prime is 3912487. The next prime is 3912497. The reversal of 3912490 is 942193.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3308761 + 603729 = 1819^2 + 777^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3912497) 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, 195615 + ... + 195634.

Almost surely, 23912490 is an apocalyptic number.

3912490 is a deficient number, since it is larger than the sum of its proper divisors (3130010).

3912490 is a wasteful number, since it uses less digits than its factorization.

3912490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391256.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 3912490 is about 1978.0015166829. The cubic root of 3912490 is about 157.5739469676.

The spelling of 3912490 in words is "three million, nine hundred twelve thousand, four hundred ninety".

Divisors: 1 2 5 10 391249 782498 1956245 3912490