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531250020310 = 252318311261487
BaseRepresentation
bin1111011101100001111…
…01111111111111010110
31212210020201122020010011
413232300331333333112
532201000001122220
61044015231350434
753244604444312
oct7566075777726
91783221566104
10531250020310
11195335872269
1286b6268241a
133b13449ba59
141b9d969cb42
15dc4437865a
hex7bb0f7ffd6

531250020310 has 32 divisors (see below), whose sum is σ = 998371878912. Its totient is φ = 203149705440.

The previous prime is 531250020307. The next prime is 531250020311. The reversal of 531250020310 is 13020052135.

It is a super-2 number, since 2×5312500203102 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531250020311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209614 + ... + 1051873.

It is an arithmetic number, because the mean of its divisors is an integer number (31199121216).

Almost surely, 2531250020310 is an apocalyptic number.

531250020310 is a deficient number, since it is larger than the sum of its proper divisors (467121858602).

531250020310 is a wasteful number, since it uses less digits than its factorization.

531250020310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263348.

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 531250020310 its reverse (13020052135), we get a palindrome (544270072445).

The spelling of 531250020310 in words is "five hundred thirty-one billion, two hundred fifty million, twenty thousand, three hundred ten".

Divisors: 1 2 5 10 23 46 115 230 1831 3662 9155 18310 42113 84226 210565 421130 1261487 2522974 6307435 12614870 29014201 58028402 145071005 290142010 2309782697 4619565394 11548913485 23097826970 53125002031 106250004062 265625010155 531250020310