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3125824 = 26132172
BaseRepresentation
bin1011111011001001000000
312212210211021
423323021000
51300011244
6150555224
735366122
oct13731100
95783737
103125824
111845529
121068b14
13855a00
145b5212
1541b284
hex2fb240

3125824 has 63 divisors (see below), whose sum is σ = 7134987. Its totient is φ = 1357824.

The previous prime is 3125821. The next prime is 3125831. The reversal of 3125824 is 4285213.

The square root of 3125824 is 1768.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 28224 + 3097600 = 168^2 + 1760^2 .

It is a Duffinian number.

Its product of digits (1920) is a multiple of the sum of its prime divisors (32).

It is not an unprimeable number, because it can be changed into a prime (3125821) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 183864 + ... + 183880.

Almost surely, 23125824 is an apocalyptic number.

3125824 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3125824 is the 1768-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3125824

3125824 is an abundant number, since it is smaller than the sum of its proper divisors (4009163).

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

3125824 is a wasteful number, since it uses less digits than its factorization.

3125824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 32 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The cubic root of 3125824 is about 146.2137358647.

Multiplying 3125824 by its sum of digits (25), we get a square (78145600 = 88402).

The spelling of 3125824 in words is "three million, one hundred twenty-five thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 13 16 17 26 32 34 52 64 68 104 136 169 208 221 272 289 338 416 442 544 578 676 832 884 1088 1156 1352 1768 2312 2704 2873 3536 3757 4624 5408 5746 7072 7514 9248 10816 11492 14144 15028 18496 22984 30056 45968 48841 60112 91936 97682 120224 183872 195364 240448 390728 781456 1562912 3125824