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520031426 = 223101173647
BaseRepresentation
bin11110111111110…
…000110011000010
31100020112100000012
4132333300303002
52031112001201
6123334024522
715613123415
oct3677606302
91306470005
10520031426
112475a9342
121261a8142
1383979905
144d0cbb7c
15309c35bb
hex1eff0cc2

520031426 has 32 divisors (see below), whose sum is σ = 828050688. Its totient is φ = 244446400.

The previous prime is 520031423. The next prime is 520031429. The reversal of 520031426 is 624130025.

It is an interprime number because it is at equal distance from previous prime (520031423) and next prime (520031429).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (520031423) 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, 803435 + ... + 804081.

It is an arithmetic number, because the mean of its divisors is an integer number (25876584).

Almost surely, 2520031426 is an apocalyptic number.

520031426 is a deficient number, since it is larger than the sum of its proper divisors (308019262).

520031426 is a wasteful number, since it uses less digits than its factorization.

520031426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 520031426 is about 22804.1975522052. The cubic root of 520031426 is about 804.1613507925.

The spelling of 520031426 in words is "five hundred twenty million, thirty-one thousand, four hundred twenty-six".

Divisors: 1 2 23 46 101 173 202 346 647 1294 2323 3979 4646 7958 14881 17473 29762 34946 65347 111931 130694 223862 401879 803758 1502981 2574413 3005962 5148826 11305031 22610062 260015713 520031426