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526244420 = 225135338189
BaseRepresentation
bin11111010111011…
…101101001000100
31100200012222122002
4133113131221010
52034204310140
6124115124432
716020001202
oct3727355104
91320188562
10526244420
11250062249
121282a3718
1385043840
144dc68072
15312ee415
hex1f5dda44

526244420 has 48 divisors (see below), whose sum is σ = 1212608880. Its totient is φ = 190634496.

The previous prime is 526244399. The next prime is 526244429. The reversal of 526244420 is 24442625.

It can be written as a sum of positive squares in 8 ways, for example, as 75446596 + 450797824 = 8686^2 + 21232^2 .

It is a super-2 number, since 2×5262444202 = 553866379162272800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (526244429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5315 + ... + 32874.

It is an arithmetic number, because the mean of its divisors is an integer number (25262685).

Almost surely, 2526244420 is an apocalyptic number.

It is an amenable number.

526244420 is an abundant number, since it is smaller than the sum of its proper divisors (686364460).

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

526244420 is a wasteful number, since it uses less digits than its factorization.

526244420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38264 (or 38262 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 526244420 is about 22940.0178727045. The cubic root of 526244420 is about 807.3512114555.

The spelling of 526244420 in words is "five hundred twenty-six million, two hundred forty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 53 65 106 130 212 260 265 530 689 1060 1378 2756 3445 6890 13780 38189 76378 152756 190945 381890 496457 763780 992914 1985828 2024017 2482285 4048034 4964570 8096068 9929140 10120085 20240170 26312221 40480340 52624442 105248884 131561105 263122210 526244420