Search a number
-
+
3144480 = 25356551
BaseRepresentation
bin1011111111101100100000
312220202102020
423333230200
51301110410
6151221440
735504403
oct13775440
95822366
103144480
111858549
121077880
13861351
145bbd3a
15421a70
hex2ffb20

3144480 has 48 divisors (see below), whose sum is σ = 9906624. Its totient is φ = 838400.

The previous prime is 3144469. The next prime is 3144509. The reversal of 3144480 is 844413.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3144480.

It is an unprimeable number.

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, 2796 + ... + 3755.

It is an arithmetic number, because the mean of its divisors is an integer number (206388).

Almost surely, 23144480 is an apocalyptic number.

3144480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3144480 is an abundant number, since it is smaller than the sum of its proper divisors (6762144).

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

3144480 is a wasteful number, since it uses less digits than its factorization.

3144480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6569 (or 6561 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 3144480 is about 1773.2681692288. The cubic root of 3144480 is about 146.5040438105.

Adding to 3144480 its reverse (844413), we get a palindrome (3988893).

The spelling of 3144480 in words is "three million, one hundred forty-four thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 6551 13102 19653 26204 32755 39306 52408 65510 78612 98265 104816 131020 157224 196530 209632 262040 314448 393060 524080 628896 786120 1048160 1572240 3144480