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520061530542 = 231372414316091
BaseRepresentation
bin1111001000101100001…
…01010011000110101110
31211201100222112001112020
413210112011103012232
532010041222434132
61034525111251010
752400416033521
oct7442605230656
91751328461466
10520061530542
111906141a3304
128495b679a66
133a0704ba1c8
141b257764bb8
15d7dbea552c
hex79161531ae

520061530542 has 64 divisors (see below), whose sum is σ = 1054676671488. Its totient is φ = 170948736000.

The previous prime is 520061530537. The next prime is 520061530553. The reversal of 520061530542 is 245035160025.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 85378917 + ... + 85385007.

It is an arithmetic number, because the mean of its divisors is an integer number (16479322992).

Almost surely, 2520061530542 is an apocalyptic number.

520061530542 is an abundant number, since it is smaller than the sum of its proper divisors (534615140946).

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

520061530542 is a wasteful number, since it uses less digits than its factorization.

520061530542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 520061530542 its reverse (245035160025), we get a palindrome (765096690567).

The spelling of 520061530542 in words is "five hundred twenty billion, sixty-one million, five hundred thirty thousand, five hundred forty-two".

Divisors: 1 2 3 6 137 241 274 411 431 482 723 822 862 1293 1446 2586 6091 12182 18273 33017 36546 59047 66034 99051 103871 118094 177141 198102 207742 311613 354282 623226 834467 1467931 1668934 2503401 2625221 2935862 4403793 5006802 5250442 7875663 8807586 14230327 15751326 28460654 42690981 85381962 201106547 359655277 402213094 603319641 632678261 719310554 1078965831 1206639282 1265356522 1898034783 2157931662 3796069566 86676921757 173353843514 260030765271 520061530542