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541531312 = 24719318209
BaseRepresentation
bin100000010001110…
…001110010110000
31101201222122022021
4200101301302300
52102113000222
6125422521224
716263640330
oct4021616260
91351878267
10541531312
11258753543
12131436214
138826693a
1451cc70c0
153281dac7
hex20471cb0

541531312 has 80 divisors (see below), whose sum is σ = 1303091200. Its totient is φ = 212751360.

The previous prime is 541531279. The next prime is 541531313. The reversal of 541531312 is 213135145.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (541531313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61864 + ... + 70072.

It is an arithmetic number, because the mean of its divisors is an integer number (16288640).

Almost surely, 2541531312 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 541531312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651545600).

541531312 is an abundant number, since it is smaller than the sum of its proper divisors (761559888).

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

541531312 is a wasteful number, since it uses less digits than its factorization.

541531312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8274 (or 8268 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 541531312 is about 23270.8253398972. The cubic root of 541531312 is about 815.0943030126.

Adding to 541531312 its reverse (213135145), we get a palindrome (754666457).

The spelling of 541531312 in words is "five hundred forty-one million, five hundred thirty-one thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 16 19 28 31 38 56 62 76 112 124 133 152 217 248 266 304 434 496 532 589 868 1064 1178 1736 2128 2356 3472 4123 4712 8209 8246 9424 16418 16492 32836 32984 57463 65672 65968 114926 131344 155971 229852 254479 311942 459704 508958 623884 919408 1017916 1091797 1247768 1781353 2035832 2183594 2495536 3562706 4071664 4367188 4835101 7125412 8734376 9670202 14250824 17468752 19340404 28501648 33845707 38680808 67691414 77361616 135382828 270765656 541531312