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3144906 = 237719
BaseRepresentation
bin1011111111110011001010
312220210000000
423333303022
51301114111
6151223430
735505552
oct13776312
95823000
103144906
1118588a6
121077b76
138615bb
145bc162
15421c56
hex2ffcca

3144906 has 32 divisors (see below), whose sum is σ = 7084800. Its totient is φ = 1046844.

The previous prime is 3144893. The next prime is 3144907. The reversal of 3144906 is 6094413.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 3144906.

It is not an unprimeable number, because it can be changed into a prime (3144907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4015 + ... + 4733.

It is an arithmetic number, because the mean of its divisors is an integer number (221400).

Almost surely, 23144906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3144906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3542400).

3144906 is an abundant number, since it is smaller than the sum of its proper divisors (3939894).

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

3144906 is an frugal number, since it uses more digits than its factorization.

3144906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 3144906 is about 1773.3882823567. The cubic root of 3144906 is about 146.5106594146.

The spelling of 3144906 in words is "three million, one hundred forty-four thousand, nine hundred six".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 719 729 1438 1458 2157 2187 4314 4374 6471 12942 19413 38826 58239 116478 174717 349434 524151 1048302 1572453 3144906