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205324333240 = 23513394854487
BaseRepresentation
bin1011111100111001001…
…0001011000010111000
3201121222101221211121211
42333032102023002320
511331001012130430
6234154045012504
720556062015305
oct2771622130270
9647871854554
10205324333240
117a094262604
1233962854134
1316492418410
149d1b28c0ac
15551aae472a
hex2fce48b0b8

205324333240 has 32 divisors (see below), whose sum is σ = 497516654880. Its totient is φ = 75812061312.

The previous prime is 205324333223. The next prime is 205324333241. The reversal of 205324333240 is 42333423502.

205324333240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205324333241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197426724 + ... + 197427763.

It is an arithmetic number, because the mean of its divisors is an integer number (15547395465).

Almost surely, 2205324333240 is an apocalyptic number.

205324333240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205324333240 is an abundant number, since it is smaller than the sum of its proper divisors (292192321640).

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

205324333240 is a wasteful number, since it uses less digits than its factorization.

205324333240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394854511 (or 394854507 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 31.

Adding to 205324333240 its reverse (42333423502), we get a palindrome (247657756742).

The spelling of 205324333240 in words is "two hundred five billion, three hundred twenty-four million, three hundred thirty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 394854487 789708974 1579417948 1974272435 3158835896 3948544870 5133108331 7897089740 10266216662 15794179480 20532433324 25665541655 41064866648 51331083310 102662166620 205324333240